N-CSR 1 file001.htm ANNUAL REPORT



                                  UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                                   FORM N-CSR

                   CERTIFIED SHAREHOLDER REPORT OF REGISTERED
                         MANAGEMENT INVESTMENT COMPANIES

Investment Company Act file number: 811-07344

Morgan Stanley California Insured Municipal Income Trust
               (Exact name of registrant as specified in charter)

1221 Avenue of the Americas, New York, New York 10020
   (Address of principal executive offices)                           (Zip code)

Ronald E. Robison
1221 Avenue of the Americas, New York, New York 10020
                     (Name and address of agent for service)

Registrant's telephone number, including area code: 212-762-4000

Date of fiscal year end: October 31, 2005

Date of reporting period: October 31, 2005


Item 1 - Report to Shareholders

Welcome, Shareholder:

In this report, you'll learn about how your investment in Morgan Stanley California Insured Municipal Income Trust performed during the annual period. We will provide an overview of the market conditions, and discuss some of the factors that affected performance during the reporting period. In addition, this report includes the Trust's financial statements and a list of Trust investments.

Market forecasts provided in this report may not necessarily come to pass. There is no assurance that the Trust will achieve its investment objective. The Trust is subject to market risk, which is the possibility that market values of securities owned by the Trust will decline and, therefore, the value of the Trust's shares may be less than what you paid for them. Accordingly, you can lose money investing in this Trust.



	Fund Report
	For the year ended October 31, 2005

Market Conditions

Throughout the 12-month period ended October 31, 2005, economic reports continued to show moderate growth, sustained consumer spending, and reasonable gains in employment. Although core inflation (which excludes food and energy) remained benign, inflationary concerns mounted during the summer as heavy demand and geopolitical events drove oil prices to protracted highs. September brought heightened uncertainty in the wake of the unprecedented devastation caused by Hurricanes Rita and Katrina. The immediate economic impact was a major disruption of the nation’s energy infrastructure. However, in the weeks that followed, economists generally agreed that an initial slowdown would be followed by stimulus to growth from reconstruction.

The Federal Open Market Committee (the Fed) continued the ‘‘measured’’ rate tightening cycle it began in June of 2004, raising the federal funds target rate eight times during the 12-month period. As a result, the rate moved from 1.75 percent to 3.75 percent, a four-year high. Yet, as the period closed, signals from the Fed supported investors’ expectations of additional increases.

Although yields on short maturity bonds rose in response to the Fed’s actions, the yields of long-term municipal bonds were lower to unchanged. Representative yields on 30-year AAA rated municipal bonds declined from 4.60 percent at the start of the period to a low of 4.25 percent in the summer, returning to 4.60 percent at the end of October. Overall, the municipal yield curve continued to flatten and the yield spread (or differential between one-year rates and 30-year rates) narrowed. In this environment, the benefits of leveraged investment strategies proved less advantageous. (Leverage involves borrowing at short-term rates to purchase longer-term securities, thereby taking advantage of the differential between short- and long-term yields.)

Lower yields during most of the year led to a surge in refinancing activity, and municipal issuance remained strong. New issue volume increased by 12 percent to a record $336 billion during the first 10 months of the calendar year. As issuers rushed to refinance higher cost debt, refundings increased to 35 percent of total issuance, up from 24 percent in the first 10 months of 2004. Bonds backed by insurance dominated issuance and increased their market penetration to nearly 60 percent. California issuers represented 15 percent of volume in 2005.

The municipal-to-Treasury yield ratio, which gauges performance between the two markets, remained attractive for tax-exempt bonds. The 30-year ratio averaged 97 percent during the period and moved as high as 102 percent in June. (Higher ratios indicate increased relative attractiveness of municipal bonds.) As a result, institutional investors that normally focus on taxable bond sectors supported municipals by ‘‘crossing over’’ to purchase tax-exempt bonds.

California’s economic conditions continued to improve with defense and high tech sectors experiencing steady growth. On the fiscal front, this has led to stronger state revenues. The state also made progress in addressing some of its structural budget imbalances.

Performance Analysis

For the 12-month period ended October 31, 2005, the net asset value (NAV) of Morgan Stanley California Insured Municipal Income Trust (IIC) increased from $15.00 to $15.04 per share. IIC paid tax-free dividends totaling $0.72 per share. The Trust’s total NAV return was 5.72 percent. IIC’s value on the New York Stock Exchange (NYSE) moved from $13.63 to $13.54 per share during the same period. Based on this change plus reinvestment of dividends, the Trust’s total market return was 4.74 percent. On October 31, 2005, IIC’s NYSE market price was at a 9.97 percent discount to its NAV. During the 12-month period ended October 31, 2005, the Trust purchased and retired 398,651 shares of common stock at a weighted average market discount of 10.92 percent. Past performance is no guarantee of future results.

Monthly dividends for the fourth quarter of 2005, declared in September, were unchanged at $0.06 per share. The dividend reflects the current level of the Trust’s net investment income. IIC’s level of undistributed net investment income was $0.091 per share on October 31, 2005, versus $0.066 per share 12 months earlier.¹

During the period, the Trust maintained a conservative strategy in anticipation of continued Fed tightening and higher interest rates. The Trust’s duration* (a measure of interest rate sensitivity) was positioned defensively throughout the period. Overall, this duration stance tempered total returns early in the fiscal period when rates declined, but helped total returns as rates rose. Reflecting leverage, the Trust’s option-adjusted duration was 10.3 years at the end of the reporting period. Consistent with a commitment to diversification, the Trust’s net assets of approximately $233 million, including preferred shares, were invested among 11 long-term sectors and 53 credits.

As discussed in previous reports, the total income available for distribution to holders of common shares includes incremental income provided by the Trust’s outstanding Auction Rate Preferred Shares (ARPS). ARPS dividends reflect prevailing short-term interest rates on maturities ranging from one week to two years. Incremental income to holders of common shares depends on two factors: the amount of ARPS outstanding and the spread between the portfolio’s cost yield and its ARPS auction rate and expenses. The greater the spread and the higher the amount of ARPS outstanding, the greater the amount of incremental income available for distribution to holders of common shares. The level of net investment income available for distribution to holders of common shares varies with the level of short-term interest rates. ARPS leverage also increases the price volatility of common shares and has the effect of extending portfolio duration.

During this 12-month period, ARPS leverage contributed approximately $0.12 per share to common-share earnings. The Trust has four ARPS series totaling $65 million, representing 28 percent of net assets, including preferred shares.

The Trust’s procedure for reinvesting all dividends and distributions in common shares is through purchases in the open market. This method helps support the market value of the Trust’s shares. In addition, we would like to remind you that the Trustees have approved a procedure whereby the Trust may, when appropriate, purchase shares in the open market or in privately negotiated transactions at a price not above market value or net asset value, whichever is lower at the time of purchase. The Trust may also utilize procedures to reduce or eliminate the amount of ARPS outstanding, including their purchase in the open market or in privately negotiated transactions.

Performance data quoted represents past performance, which is no guarantee of future results, and current performance may be lower or higher than the figures shown. Investment return, net asset value and common share market price will fluctuate and Trust shares, when sold, may be worth more or less than their original cost.

* A measure of the sensitivity of a bond’s price to changes in interest rates, expressed in years. Each year of duration represents an expected 1 percent change in the price of a bond for every 1 percent change in interest rates. The longer a bond’s duration, the greater the effect of interest-rate movements on its price. Typically, trusts with shorter durations perform better in rising-interest-rate environments, while trusts with longer durations perform better when rates decline.

There is no guarantee that any sectors mentioned will continue to perform well or that securities in such sectors will be held by the Trust in the future.

Income earned by certain securities in the portfolio may be subject to the federal alternative minimum tax (AMT).


TOP FIVE SECTORS
Water & Sewer	25.9	%
Transportation	23.5
Tax Allocation	18.2
Electric	15.7
Public Facilities	14.3


CREDIT ENHANCEMENTS**
Ambac	31.6	%
FSA	25.3
MBIA	21.4
FGIC	16.0
U.S. Government Backed	3.9
XLCA	1.8

Does not include open short futures contracts with an underlying face amount of $25,516,251 with unrealized appreciation of $424,278.

Data as of October 31, 2005. Subject to change daily. All percentages for top five sectors are as a percentage of net assets applicable to common shareholders. All percentages for credit enhancements are as a percentage of total long-term investments. These data are provided for informational purposes only and should not be deemed a recommendation to buy or sell the securities mentioned. Morgan Stanley is a full-service securities firm engaged in securities trading and brokerage activities, investment banking, research and analysis, financing and financial advisory services.

For More Information About
Portfolio Holdings

Each Morgan Stanley trust provides a complete schedule of portfolio holdings in its semiannual and annual reports within 60 days of the end of the trust’s second and fourth fiscal quarters by filing the schedule electronically with the Securities and Exchange Commission (SEC). The semiannual reports are filed on Form N-CSRS and the annual reports are filed on Form N-CSR. Morgan Stanley also delivers the semiannual and annual reports to trust shareholders and makes these reports available on its public Web site, www.morganstanley.com. Each Morgan Stanley trust also files a complete schedule of portfolio holdings with the SEC for the trust’s first and third fiscal quarters on Form N-Q. Morgan Stanley does not deliver the reports for the first and third fiscal quarters to shareholders, nor are the reports posted to the Morgan Stanley public Web site. You may, however, obtain the Form N-Q filings (as well as the Form N-CSR and N-CSRS filings) by accessing the SEC’s Web site, http://www.sec.gov. You may also review and copy them at the SEC’s Public Reference Room in Washington, DC. Information on the operation of the SEC’s Public Reference Room may be obtained by calling the SEC at (800) SEC-0330. You can also request copies of these materials, upon payment of a duplicating fee, by electronic request at the SEC’s e-mail address (publicinfo@sec.gov) or by writing the Public Reference section of the SEC, Washington, DC 20549-0102.



	Distribution by Maturity
	(% of Long-Term Portfolio) As of October 31, 2005

Weighted Average Maturity: 20 Years^(a)

(a)

Where applicable maturities reflect mandatory tenders, puts and call dates.

Portfolio structure is subject to change.



	Call and Cost (Book) Yield Structure
	(Based on Long-Term Portfolio) As of October 31, 2005

Years Bonds Callable — Weighted Average Call Protection: 7 Years

Cost (Book) Yield^(b) — Weighted Average Book Yield: 5.0%

(a)

May include issues initially callable in previous years.

(b)

Cost or "book" yield is the annual income earned on a portfolio investment based on its original purchase price before the Trust's operating expenses. For example, the Trust is earning a book yield of 5.6% on 3% of the long-term portfolio that is callable in 2005.

Portfolio structure is subject to change.

Morgan Stanley California Insured Municipal Income Trust

Portfolio of Investments October 31, 2005


PRINCIPAL AMOUNT IN THOUSANDS			COUPON RATE			MATURITY DATE		VALUE
		California Tax-Exempt Municipal Bonds (133.7%)
		General Obligation (4.9%)
$	780	California, Various Purpose Ser 2005 dtd 04/01/93 (FSA)		5.50	%		04/01/19	$	787,511
	4,000	Los Angeles Unified School District, 2003 Ser A (MBIA)		5.25			07/01/19		4,316,160
	3,000	Oakland, Ser 2003 A (MBIA)		5.00			01/15/33		3,082,860
	7,780								8,186,531
		Educational Facilities Revenue (8.7%)
		California State University,
	2,000	Ser 2003 A (FGIC)		5.25			11/01/21		2,153,900
	2,000	Ser 2005 A (Ambac)		5.00			11/01/35		2,068,020
		University of California,
	2,000	Ser 2003 B (Ambac)		5.00			05/15/22		2,089,820
	5,000	Multi Purpose Ser 2003 Q (FSA)		5.00			09/01/23		5,197,900
	1,000	Limited Projects Ser 2005 B (FSA) (WI)		5.00			05/15/30		1,034,030
	2,000	Multi Purpose Ser Q (FSA)		5.00			09/01/31		2,060,620
	14,000								14,604,290
		Electric Revenue (15.7%)
	8,000	California Department of Water Resources, Power Supply Ser 2002 A (Ambac)		5.375			05/01/18		8,643,520
		Los Angeles Department of Water & Power,
	4,000	2001 Ser A (FSA)		5.25			07/01/21		4,253,120
	5,000	2003 Ser A Subser A-2 (MBIA)		5.00			07/01/27		5,165,200
	4,000	Modesto Irrigation District, Ser 2001 A COPs (FSA)		5.00			07/01/26		4,101,000
	2,150	Turlock Irrigation District, Refg 1998 Ser A (MBIA)		5.00			01/01/26		2,229,313
	2,000	Puerto Rico Electric Power Authority, Ser RR (XLCA)		5.00			07/01/30		2,076,780
	25,150								26,468,933
		Hospital Revenue (5.5%)
	2,910	California Health Facilities Financing Authority, Children's Hospital San Diego Ser 1993 (MBIA)		5.75			07/01/23		2,923,357
	6,000	University of California, UCLA Medical Center Ser 2004A (Ambac)		5.25			05/15/30		6,294,660
	8,910								9,218,017
		Mortgage Revenue – Single Family (3.1%)
	5,000	California Department of Veterans Affairs, Home Purchase 2002 Ser A (Ambac)		5.35			12/01/27		5,179,600
		Public Facilities Revenue (14.3%)
	5,000	Modesto, Community Center Refg 1993 Ser A COPs (Ambac)		5.00			11/01/23		5,367,100
	2,000	Sacramento Financing Authority, 2003 Capital Impr (Ambac)		5.00			12/01/33		2,048,680

See Notes to Financial Statements

Morgan Stanley California Insured Municipal Income Trust

Portfolio of Investments October 31, 2005 continued


PRINCIPAL AMOUNT IN THOUSANDS			COUPON RATE			MATURITY DATE		VALUE
$	5,000	San Francisco Redevelopment Agency, George R Moscone Convention Center Refg Ser 2002 (FSA)		5.25	%		07/01/18	$	5,385,400
	8,000	San Jose Financing Authority, Civic Center Ser 2002 B (Ambac)		5.00			06/01/37		8,152,800
	1,000	Simi Valley Public Financing Authority, Ser 2004 COPs (Ambac)		5.00			09/01/30		1,028,340
	2,000	Val Verde Unified School District, Ser 2005 B COPs (FGIC)		5.00			01/01/35		2,050,880
	23,000								24,033,200
		Tax Allocation Revenue (18.2%)
		Burbank Public Financing Authority,
	1,300	Golden State Redev 2003 Ser A (Ambac)		5.25			12/01/22		1,387,646
	1,500	Golden State Redev 2003 Ser A (Ambac)		5.25			12/01/23		1,599,015
	1,000	Capistrano Unified School District, Community Facilities District #98-2 Ladera Special Tax Ser 2005 (FGIC)		5.00			09/01/29		1,033,290
	2,000	Chula Vista Public Financing Authority, Ser A 2005 (MBIA)		5.00			09/01/29		2,066,580
	3,000	La Quinta Financing Authority, Local Agency 2004 Ser A (Ambac)		5.25			09/01/24		3,210,870
	2,000	La Quinta Redevelopment Agency, Area #1 Ser 2002 (Ambac)		5.00			09/01/22		2,083,220
		Long Beach Bond Finance Authority,
	1,070	Downtown N Long Beach Poly High & West Beach 2002 Ser A (Ambac) .		5.375			08/01/18		1,165,990
	3,000	Housing & Gas Utility 2005 Ser A (Ambac)		5.00			08/01/40		3,039,990
	3,000	Milpitas Redevelopment Agency, Area #1 Ser 2003 (MBIA)		5.00			09/01/22		3,112,980
	6,000	Poway Redevelopment Agency, Pagway DRIVERS Ser 372 (MBIA)		7.487	‡		06/15/11		6,741,120
	2,000	Riverside County Public Financing Authority, Ser 2005 A (XLCA)		5.00			10/01/37		2,039,100
	2,000	San Jose Redevelopment Agency, Merged Area Ser 2002 (MBIA)		5.00			08/01/32		2,036,740
	1,000	San Marcos Public Facilities Authority, Areas #2 & 3 2005 Ser C (Ambac)		5.00			08/01/35		1,026,720
	28,870								30,543,261
		Transportation Facilities Revenue (23.5%)
	5,000	California Infrastructure and Economic Development Bank, Bay Area Toll Bridges Seismic Retrofit First Lien Ser 2003 A (FSA)		5.25			07/01/21		5,391,750
	2,750	Long Beach Harbor, Ser 1995 (AMT) (MBIA)		5.00			05/15/24		2,828,760
	10,000	Los Angeles, Harbor Department 2001 A (Ambac)		5.00			08/01/25		10,392,900
	5,000	Los Angeles County Metropolitan Transportation Authority, Sales Tax Ser 2000 A (FGIC)		5.25			07/01/30		5,282,600
	3,000	Port of Oakland, 2000 Ser K (AMT) (FGIC)		5.875			11/01/17		3,226,380
	5,000	San Francisco Airports Commission, San Francisco Int'l Airport Refg Issue 27A (AMT) (MBIA)		5.25			05/01/26		5,142,900
	1,125	San Francisco Bay Area Rapid Transit District, Sales Tax Ser 1998 (Ambac)		5.00			07/01/28		1,164,296

See Notes to Financial Statements

Morgan Stanley California Insured Municipal Income Trust

Portfolio of Investments October 31, 2005 continued


PRINCIPAL AMOUNT IN THOUSANDS			COUPON RATE			MATURITY DATE			VALUE
$	2,000	San Joaquin Hills Transportation Corridor Agency, Toll Road Refg Ser 1997 A (MBIA)		5.25	%		01/15/30		$	2,078,440
	4,000	San Jose, Airport Ser 2001 A (FGIC)		5.00			03/01/25			4,090,800
	37,875									39,598,826
		Water & Sewer Revenue (25.9%)
	3,000	California Department of Water Resources, Central Valley Ser Y (FGIC)		5.25			12/01/19			3,234,960
		Contra Costa Water District,
	5,060	Refg Ser L (FSA)		5.00			10/01/20			5,310,521
	2,135	Refg Ser L (FSA)		5.00			10/01/21			2,233,146
	2,240	Refg Ser L (FSA)		5.00			10/01/22			2,333,699
	3,000	East Bay Municipal Utility District, Water Ser 2001 (MBIA)		5.00			06/01/26			3,081,420
	7,000	Los Angeles Wastewater, Refg Ser 2003 B (FSA)		5.00			06/01/22			7,314,930
		Metropolitan Waterworks District of Southern California,
	4,000	2003 Ser B-1 (FGIC)		5.00			10/01/33			4,119,720
	2,000	2003 Ser B-1 (FGIC)		5.00			10/01/36			2,058,520
	4,000	San Diego County Water Authority, Ser 2004 A (FSA)		5.00			05/01/29			4,139,160
	5,000	San Francisco Public Utilities Commission, Water Refg Ser A 2001 (FSA)		5.00			11/01/31			5,120,950
	4,690	Santa Maria, Local Water & Refg Ser 1993 COPs (FGIC)		5.50			08/01/21			4,698,395
	42,125									43,645,421
		Other Revenue (4.4%)
	3,000	California, Economic Recovery Ser 2004 A (MBIA)		5.00			07/01/15			3,225,690
	4,000	Golden State Tobacco Securitization Corporation, Enhanced Asset Backed Ser 2005 A (FGIC)		5.00			06/01/38			4,086,920
	7,000									7,312,610
		Refunded (9.5%)
	3,000	Sacramento Financing Authority, Water & Capital Impr 2001 Ser A (Ambac)		5.00			12/01/11	†		3,226,650
	2,000	San Diego Unified School District, 1998 Ser C (FSA)		5.00			07/01/11	#		2,170,120
	1,875	San Francisco Bay Area Rapid Transit District, Sales Tax Ser 1998 (Ambac)		5.00			07/01/08	†		1,983,938
		Puerto Rico Infrastructure Financing Authority,
	3,000	2000 Ser A (ETM)		5.375			10/01/24			3,249,660
	5,000	2000 Ser A (ETM)††		5.50			10/01/32			5,429,850
	14,875									16,060,218
	214,585	Total California Tax-Exempt Municipal Bonds (Cost $216,765,547)								224,850,907

See Notes to Financial Statements

Morgan Stanley California Insured Municipal Income Trust

Portfolio of Investments October 31, 2005 continued


PRINCIPAL AMOUNT IN THOUSANDS			COUPON RATE			MATURITY DATE			VALUE
		California Tax-Exempt Short-Term Municipal Obligations (3.5%)
$	700	California Department of Water Resources, Power Supply Ser 2002 B Subser B-1 (Demand 11/01/05)		2.69*	%		05/01/22		$	700,000
	1,400	Irvine Assessment District No. 94-15, Improvement Bond Act 1915 Ser A (Demand 11/01/05)		2.66	*		09/02/20			1,400,000
	3,760	Newport Beach, Hoag Memorial Hospital Presbyterian 1992 Ser (Demand 11/01/05)		2.70	*		10/01/22			3,760,000
	5,860	Total California Tax-Exempt Short-Term Municipal Obligations (Cost $5,860,000)								5,860,000
$	220,445	Total Investments (Cost $222,625,547) (a)(b)					137.2	%		230,710,907
		Other Assets in Excess of Liabilities					1.5			2,530,387
		Preferred Shares of Beneficial Interest					(38.7	)		(65,046,250	)
		Net Assets Applicable to Common Shareholders					100.0	%	$	168,195,044

Note:

The categories of investments are shown as a percentage of net assets applicable to common shareholders.

AMT

Alternative Minimum Tax.

COPs

Certificates of Participation.

DRIVERS

Derivative Inverse Tax-Exempt Receipts (Illiquid security).

ETM

Escrowed to maturity.

Security purchased on a when-issued basis.

†

Prerefunded to call date shown.

Crossover refunded to call date shown.

††

A portion of this security has been physically segregated in connection with open futures contracts in the amount of $130,000.

‡

Current coupon rate for inverse floating rate municipal obligation. This rate resets periodically as the auction rate on the related security changes. Position in inverse floating rate municipal obligation has a total value of $6,741,120 which represents 4.0% of net assets applicable to common shareholders.

Current coupon of variable rate demand obligation.

(a)

Securities have been designated as collateral in an amount equal to $25,811,189 in connection with open futures contracts and the purchase of a when-issued security.

(b)

The aggregate cost for federal income tax purposes is $222,610,759. The aggregate gross unrealized appreciation is $8,506,875 and the aggregate gross unrealized depreciation is $406,727, resulting in net unrealized appreciation of $8,100,148.

Bond Insurance:

Ambac

Ambac Assurance Corporation.

FGIC

Financial Guaranty Insurance Company.

FSA

Financial Security Assurance Inc.

MBIA

Municipal Bond Investors Assurance Corporation.

XLCA

XL Capital Assurance Inc.

See Notes to Financial Statements

Morgan Stanley California Insured Municipal Income Trust

Portfolio of Investments October 31, 2005 continued

Futures Contracts Open at October 31, 2005:

NUMBER OF
CONTRACTS

LONG/SHORT

DESCRIPTION,
DELIVERY MONTH
AND YEAR

UNDERLYING
FACE AMOUNT
AT VALUE

UNREALIZED
APPRECIATION

200

Short

U.S. Treasury Notes 5 Yr

December 2005

$(21,178,126)

$322,264

Short

U.S. Treasury Notes 10 Yr

December 2005

(4,338,125)

102,014

Total Unrealized Appreciation

$424,278

See Notes to Financial Statements

Morgan Stanley California Insured Municipal Income Trust

Financial Statements

Statement of Assets and Liabilities

October 31, 2005


Assets:
Investments in securities, at value (cost $222,625,547)	$	230,710,907
Cash		91,021
Interest receivable		3,666,156
Prepaid expenses and other assets		106,229
Total Assets		234,574,313
Liabilities:
Payable for:
Investment purchased		1,029,940
Common shares of beneficial interest repurchased		101,093
Investment advisory fee		53,987
Administration fee		15,996
Transfer agent fee		10,223
Variation margin		4,376
Accrued expenses and other payables		117,404
Total Liabilities		1,333,019
Preferred shares of beneficial interest (at liquidation value) (1,000,000 shares authorized of non-participating $.01 par value, 1,300 shares outstanding)		65,046,250
Net Assets Applicable to Common Shareholders	$	168,195,044
Composition of Net Assets Applicable to Common Shareholders:
Common shares of beneficial interest (unlimited shares authorized of $.01 par value, 11,182,811 shares outstanding)	$	158,863,982
Net unrealized appreciation		8,509,638
Accumulated undistributed net investment income		1,023,197
Accumulated net realized loss		(201,773	)
Net Assets Applicable to Common Shareholders	$	168,195,044
Net Asset Value Per Common Share
($168,195,044 divided by 11,182,811 common shares outstanding)	$	15.04

Statement of Operations

For the year ended October 31, 2005


Net Investment Income:
Interest Income				$11,084,749
Expenses
Investment advisory fee				643,736
Auction commission fees				273,379
Administration fee				190,737
Professional fees				75,528
Transfer agent fees and expenses				34,985
Shareholder reports and notices				30,347
Auction agent fees				29,395
Registration fees				15,763
Custodian fees				13,191
Trustees' fees and expenses				9,036
Other				48,649
Total Expenses				1,364,746
Less: expense offset				(12,800)
Net Expenses				1,351,946
Net Investment Income				9,732,803
Net Realized and Unrealized Gain (Loss):
Net Realized Gain (Loss) on:
Investments				2,107,274
Futures contracts				(33,560)
Net Realized Gain				2,073,714
Net Change in Unrealized Appreciation/Depreciation on:
Investments				(3,789,050)
Futures contracts				1,282,459
Net Depreciation				(2,506,591)
Net Loss				(432,877)
Dividends to preferred shareholders from net investment income				(1,278,250)
Net Increase				$8,021,676

See Notes to Financial Statements

Morgan Stanley California Insured Municipal Income Trust

Financial Statements continued

Statement of Changes in Net Assets


	FOR THE YEAR ENDED OCTOBER 31, 2005			FOR THE YEAR ENDED OCTOBER 31, 2004
Increase (Decrease) in Net Assets:
Operations:
Net investment income	$	9,732,803		$	10,222,626
Net realized gain (loss)		2,073,714			(2,717,371	)
Net change in unrealized appreciation/depreciation		(2,506,591	)		5,264,735
Dividends to preferred shareholders from net investment income		(1,278,250	)		(1,184,652	)
Net Increase		8,021,676			11,585,338
Dividends and Distributions to Common Shareholders from:
Net investment income		(8,196,530	)		(9,493,868	)
Net realized gain		—			(816,793	)
Total Dividends and Distributions		(8,196,530	)		(10,310,661	)
Decrease from transactions in common shares of beneficial interest		(5,387,753	)		(6,054,101	)
Net Decrease		(5,562,607	)		(4,779,424	)
Net Assets Applicable to Common Shareholders:
Beginning of period		173,757,651			178,537,075
End of Period
(Including accumuated undistributed net investment income of $1,023,197 and $767,882, respectively)	$	168,195,044		$	173,757,651

See Notes to Financial Statements

Morgan Stanley California Insured Municipal Income Trust

Notes to Financial Statements October 31, 2005

1. Organization and Accounting Policies

Morgan Stanley California Insured Municipal Income Trust (the "Trust") is registered under the Investment Company Act of 1940, as amended, as a non-diversified, closed-end management investment company. The Trust's investment objective is to provide current income which is exempt from both federal and California income taxes. The Trust was organized as a Massachusetts business trust on November 2, 1992 and commenced operations on February 26, 1993.

The following is a summary of significant accounting policies:

A. Valuation of Investments — (1) portfolio securities are valued by an outside independent pricing service approved by the Trustees. The pricing service uses both a computerized grid matrix of tax-exempt securities and evaluations by its staff, in each case based on information concerning market transactions and quotations from dealers which reflect the mean between the last reported bid and asked price. The portfolio securities are thus valued by reference to a combination of transactions and quotations for the same or other securities believed to be comparable in quality, coupon, maturity, type of issue, call provisions, trading characteristics and other features deemed to be relevant. The Trustees believe that timely and reliable market quotations are generally not readily available for purposes of valuing tax-exempt securities and that the valuations supplied by the pricing service are more likely to approximate the fair value of such securities; (2) futures are valued at the latest sale price on the commodities exchange on which they trade unless it is determined that such price does not reflect their market value, in which case they will be valued at their fair value as determined in good faith under procedures established by and under the supervision of the Trustees; and (3) short-term debt securities having a maturity date of more than sixty days at time of purchase are valued on a mark-to-market basis until sixty days prior to maturity and thereafter at amortized cost based on their value on the 61st day. Short-term debt securities having a maturity date of sixty days or less at the time of purchase are valued at amortized cost.

B. Accounting for Investments — Security transactions are accounted for on the trade date (date the order to buy or sell is executed). Realized gains and losses on security transactions are determined by the identified cost method. Discounts are accreted and premiums are amortized over the life of the respective securities. Interest income is accrued daily.

C. Futures Contracts — A futures contract is an agreement between two parties to buy and sell financial instruments or contracts based on financial indices at a set price on a future date. Upon entering into such a contract, the Trust is required to pledge to the broker cash, U.S. Government securities or other liquid portfolio securities equal to the minimum initial margin requirements of the applicable futures exchange. Pursuant to the contract, the Trust agrees to receive from or pay to the broker an amount of cash equal to the daily fluctuation in the value of the contract. Such receipts or payments known as variation margin are recorded by the Trust as unrealized gains and losses. Upon closing of the contract, the Trust realizes a gain or loss equal to the difference between the value of the contract at the time it was opened and the value at the time it was closed.

Morgan Stanley California Insured Municipal Income Trust

Notes to Financial Statements October 31, 2005 continued

D. Federal Income Tax Policy — It is the Trust's policy to comply with the requirements of the Internal Revenue Code applicable to regulated investment companies and to distribute substantially all of its taxable and nontaxable income to its shareholders. Accordingly, no federal income tax provision is required.

E. Dividends and Distributions to Shareholders — Dividends and distributions to shareholders are recorded on the ex-dividend date.

F. Use of Estimates — The preparation of financial statements in accordance with generally accepted accounting principles requires management to make estimates and assumptions that affect the reported amounts and disclosures. Actual results could differ from those estimates.

2. Investment Advisory/Administration Agreements

Pursuant to an Investment Advisory Agreement with Morgan Stanley Investment Advisors Inc. (the "Investment Adviser"), the Trust pays an advisory fee, calculated weekly and payable monthly, by applying the annual rate of 0.27% to the Trust's weekly total net assets including preferred shares.

Pursuant to an Administration Agreement with Morgan Stanley Services Company Inc. (the "Administrator"), an affiliate of the Investment Adviser, the Trust pays an administration fee, calculated weekly and payable monthly, by applying the annual rate of 0.08% to the Trust's weekly total net assets including preferred shares.

3. Security Transactions and Transactions with Affiliates

The cost of purchases and proceeds from sales of portfolio securities, excluding short-term investments, for the year ended October 31, 2005, aggregated $29,302,187 and $36,789,071, respectively.

Morgan Stanley Trust, an affiliate of the Investment Adviser and Administrator, is the Trust's transfer agent.

The Trust has an unfunded noncontributory defined benefit pension plan covering certain independent Trustees of the Trust who will have served as independent Trustees for at least five years at the time of retirement. Benefits under this plan are based on factors which include years of service and compensation. The Trustees voted to close the plan to new participants and eliminate the future benefits growth due to increases to compensation after July 31, 2003. Aggregate pension costs for the year ended October 31, 2005, included in Trustees' fees and expenses in the Statement of Operations amounted to $6,227. At October 31, 2005, the Trust had an accrued pension liability of $53,674 which is included in accrued expenses in the Statement of Assets and Liabilities.

The Trust has an unfunded Deferred Compensation Plan (the "Compensation Plan") which allows each independent Trustee to defer payment of all, or a portion, of the fees he receives for serving on the Board of Trustees. Each eligible Trustee generally may elect to have the deferred amounts credited with a return equal

Morgan Stanley California Insured Municipal Income Trust

Notes to Financial Statements October 31, 2005 continued

to the total return on one or more of the Morgan Stanley funds that are offered as investment options under the Compensation Plan. Appreciation/depreciation and distributions received from these investments are recorded with an offsetting increase/decrease in the deferred compensation obligation and do not affect the net asset value of the Trust.

4. Preferred Shares of Beneficial Interest

The Trust is authorized to issue up to 1,000,000 non-participating preferred shares of beneficial interest having a par value of $.01 per share, in one or more series, with rights as determined by the Trustees, without approval of the common shareholders. The Trust has issued Series 1 through 4 Auction Rate Preferred Shares ("preferred shares") which have a liquidation value of $50,000 per share plus the redemption premium, if any, plus accumulated but unpaid dividends, whether or not declared, thereon to the date of distribution. The Trust may redeem such shares, in whole or in part, at the original purchase price of $50,000 per share plus accumulated but unpaid dividends, whether or not declared, thereon to the date of redemption.

Dividends, which are cumulative, are reset through auction procedures.


SERIES	SHARES*		AMOUNT IN THOUSANDS*		RATE*			RESET DATE		RANGE OF DIVIDEND RATES**
1		200	$	10,000		2.45	%		11/07/05	1.458% – 2.65%
2		400		20,000		2.45			11/07/05	1.35 – 2.65
3		500		25,000		2.22			07/10/06	2.22
4		200		10,000		2.43			11/07/05	1.695 – 2.65

As of October 31, 2005.

For the year ended October 31, 2005.

Subsequent to October 31, 2005 and up through December 2, 2005, the Trust paid dividends to Series 1 through 4 at rates ranging from 2.22% to 2.55% in the aggregate amount of $168,782.

The Trust is subject to certain restrictions relating to the preferred shares. Failure to comply with these restrictions could preclude the Trust from declaring any distributions to common shareholders or purchasing common shares and/or could trigger the mandatory redemption of preferred shares at liquidation value.

The preferred shares, which are entitled to one vote per share, generally vote with the common shares but vote separately as a class to elect two Trustees and on any matters affecting the rights of the preferred shares.

Morgan Stanley California Insured Municipal Income Trust

Notes to Financial Statements October 31, 2005 continued

5. Common Shares of Beneficial Interest

Transactions in common shares of beneficial interest were as follows:


	SHARES			PAR VALUE			CAPITAL PAID IN EXCESS OF PAR VALUE
Balance, October 31, 2003		12,032,262		$	120,322		$	170,185,803
Treasury shares purchased and retired (weighted average discount 9.23%)*		(450,800	)		(4,508	)		(6,049,882	)
Balance, October 31, 2004		11,581,462			115,814			164,135,921
Treasury shares purchased and retired (weighted average discount 10.92%)*		(398,651	)		(3,986	)		(5,383,767	)
Balance, October 31, 2005.		11,182,811		$	111,828		$	158,752,154

The Trustees have voted to retire the shares purchased.

6. Dividends to Common Shareholders

On September 27, 2005, the Trust declared the following dividends from net investment income:


AMOUNT PER SHARE	RECORD DATE	PAYABLE DATE
$0.06	November 4, 2005	November 18, 2005
$0.06	December 9, 2005	December 23, 2005

7. Expense Offset

The expense offset represents a reduction of the custodian fees for earnings on cash balances maintained by the Trust.

8. Risks Relating to Certain Financial Instruments

The Trust may invest a portion of its assets in residual interest bonds, which are inverse floating rate municipal obligations. The prices of these securities are subject to greater market fluctuations during periods of changing prevailing interest rates than are comparable fixed rate obligations.

To hedge against adverse interest rate changes, the Trust may invest in financial futures contracts or municipal bond index futures contracts ("futures contracts").

These futures contracts involve elements of market risk in excess of the amount reflected in the Statement of Assets and Liabilities. The Trust bears the risk of an unfavorable change in the value of the underlying securities. Risks may also arise upon entering into these contracts from the potential inability of the counterparties to meet the terms of their contracts.

Morgan Stanley California Insured Municipal Income Trust

Notes to Financial Statements October 31, 2005 continued

9. Federal Income Tax Status

The amount of dividends and distributions from net investment income and net realized capital gains are determined in accordance with federal income tax regulations which may differ from generally accepted accounting principles. These "book/tax" differences are either considered temporary or permanent in nature. To the extent these differences are permanent in nature, such amounts are reclassified within the capital accounts based on their federal tax-basis treatment; temporary differences do not require reclassification. Dividends and distributions which exceed net investment income and net realized capital gains for tax purposes are reported as distributions of paid-in-capital.

The tax character of distributions paid was as follows:


	FOR THE YEAR ENDED OCTOBER 31, 2005		FOR THE YEAR ENDED OCTOBER 31, 2004
Tax-exempt income	$	9,524,886	$	10,678,520
Long-term capital gains		—		816,793
Total distributions	$	9,524,886	$	11,495,313

As of October 31, 2005, the tax-basis components of accumulated earnings were as follows:


Undistributed tax-exempt income	$	1,108,603
Undistributed long-term gains		222,512
Net accumulated earnings		1,331,115
Temporary differences		(100,201	)
Net unrealized appreciation		8,100,148
Total accumulated earnings	$	9,331,062

During the year ended October 31, 2005, the Trust utilized its net capital loss carryforward of $3,136,376.

As of October 31, 2005, the Trust had temporary book/tax differences primarily attributable to book amortization of discounts on debt securities, mark-to-market of open futures contracts and dividend payable and permanent book/tax differences attributable to tax adjustments on debt securities sold by the Trust. To reflect reclassifications arising from the permanent differences, accumulated undistributed net investment income was charged and accumulated net realized loss was credited $2,708.

Morgan Stanley California Insured Municipal Income Trust

Financial Highlights

Selected ratios and per share data for a common share of beneficial interest outstanding throughout each period:


	FOR THE YEAR ENDED OCTOBER 31,
	2005			2004			2003			2002			2001
Selected Per Share Data:
Net asset value, beginning of period	$	15.00		$	14.84		$	15.00		$	15.07		$	14.28
Income (loss) from investment operations:
Net investment income*		0.86			0.86			0.92			1.00			0.97
Net realized and unrealized gain (loss)		(0.05	)		0.22			(0.12	)		(0.14	)		0.79
Common share equivalent of dividends paid to preferred shareholders*		(0.11	)		(0.10	)		(0.08	)		(0.11	)		(0.19	)
Total income from investment operations		0.70			0.98			0.72			0.75			1.57
Less dividends and distributions from:
Net investment income		(0.72	)		(0.80	)		(0.89	)		(0.82	)		(0.78	)
Net realized gain		—			(0.07	)		—			—			—
Total dividends and distributions		(0.72	)		(0.87	)		(0.89	)		(0.82	)		(0.78	)
Anti-dilutive effect of acquiring treasury shares*		0.06			0.05			0.01			0.00			0.00
Net asset value, end of period	$	15.04		$	15.00		$	14.84		$	15.00		$	15.07
Market value, end of period	$	13.54		$	13.63		$	13.87		$	14.38		$	14.57
Total Return†		4.74	%		4.78	%		2.61	%		4.41	%		16.08	%
Ratios to Average Net Assets of Common Shareholders:
Total expenses (before expense offset)		0.79	%⁽¹⁾		0.81	%⁽¹⁾		0.77	%⁽¹⁾		0.74	%⁽¹⁾		0.75	%
Net investment income before preferred stock dividends		5.63	%		5.82	%		6.14	%		6.75	%		6.57	%
Preferred stock dividends		0.74	%		0.67	%		0.56	%		0.77	%		1.29	%
Net investment income available to common shareholders		4.89	%		5.15	%		5.58	%		5.98	%		5.28	%
Supplemental Data:
Net assets applicable to common shareholders, end of period, in thousands		$168,195			$173,758			$178,537			$183,538			$184,762
Asset coverage on preferred shares at end of period		359	%		367	%		374	%		382	%		384	%
Portfolio turnover rate		13	%		16	%		64	%		16	%		16	%

The per share amounts were computed using an average number of common shares outstanding during the period.

†

Total return is based upon the current market value on the last day of each period reported. Dividends and distributions are assumed to be reinvested at the prices obtained under the Trust's dividend reinvestment plan. Total return does not reflect brokerage commissions.

(1)

Does not reflect the effect of expense offset of 0.01%.

See Notes to Financial Statements

Morgan Stanley California Insured Municipal Income Trust

Report of Independent Registered Public Accounting Firm

To the Shareholders and Board of Trustees of
Morgan Stanley California Insured Municipal Income Trust:

We have audited the accompanying statement of assets and liabilities of Morgan Stanley California Insured Municipal Income Trust (the "Trust"), including the portfolio of investments, as of October 31, 2005, and the related statements of operations for the year then ended and changes in net assets for each of the two years in the period then ended, and the financial highlights for each of the five years in the period then ended. These financial statements and financial highlights are the responsibility of the Trust's management. Our responsibility is to express an opinion on these financial statements and financial highlights based on our audits.

We conducted our audits in accordance with the standards of the Public Company Accounting Oversight Board (United States). Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements and financial highlights are free of material misstatement. The Trust is not required to have, nor were we engaged to perform, an audit of its internal control over financial reporting. Our audits included consideration of internal control over financial reporting as a basis for designing audit procedures that are appropriate in the circumstances, but not for the purpose of expressing an opinion on the effectiveness of the Trust's internal control over financial reporting. Accordingly, we express no such opinion. An audit also includes examining, on a test basis, evidence supporting the amounts and disclosures in the financial statements, assessing the accounting principles used and significant estimates made by management, as well as evaluating the overall financial statement presentation. Our procedures included confirmation of securities owned as of October 31, 2005, by correspondence with the custodian and brokers. We believe that our audits provide a reasonable basis for our opinion.

In our opinion, the financial statements and financial highlights referred to above present fairly, in all material respects, the financial position of Morgan Stanley California Insured Municipal Income Trust as of October 31, 2005, the results of its operations for the year then ended, the changes in its net assets for each of the two years in the period then ended, and the financial highlights for each of the five years in the period then ended, in conformity with accounting principles generally accepted in the United States of America.

Deloitte & Touche LLP
New York, New York
December 19, 2005

Morgan Stanley California Insured Municipal Income Trust

Shareholder Voting Results

On October 26, 2005, an annual meeting of the Trust's shareholders was held for the purpose of voting on the following matters, the results of which were as follows:

Election of Trustees by all Shareholders:


	FOR	WITHHELD
Wayne E. Hedien	7,958,706	89,073
Joseph J. Kearns	7,959,529	88,250
Fergus Reid	7,959,505	88,274

Election of Trustee by Preferred Shareholders:


	FOR	WITHHELD
Dr. Manuel H. Johnson	1,088	0

The following Trustees were not standing for reelection at this meeting: Michael Bozic, Edwin J. Garn, Charles A. Fiumefreddo, James F. Higgins and Michael E. Nugent.

Morgan Stanley California Insured Municipal Income Trust

Trustee and Officer Information

Independent Trustees:

Name, Age and Address of
Independent Trustee

Position(s)
Held with Registrant

Term of
Office and
Length of
Time
Served*

Principal Occupation(s)
During Past 5 Years**

Number of Portfolios
in Fund Complex Overseen by Trustee***

Other Directorships
Held by Trustee

Michael Bozic (64)
c/o Kramer Levin Naftalis & Frankel LLP Counsel to the Independent Trustees
1177 Avenue of the Americas
New York, NY 10036

Trustee

Since
April 1994

Private Investor; Director or Trustee of the Retail Funds (since April 1994) and the Institutional Funds (since July 2003); formerly Vice Chairman of Kmart Corporation (December 1998-October 2000), Chairman and Chief Executive Officer of Levitz Furniture Corporation (November 1995-November 1998) and President and Chief Executive Officer of Hills Department Stores (May 1991-July 1995); formerly variously Chairman, Chief Executive Officer, President and Chief Operating Officer (1987-1991) of the Sears Merchandise Group of Sears, Roebuck & Co.

197

Director of various business organizations.

Edwin J. Garn (73)
1031 N. Chartwell Court
Salt Lake City, UT 84103

Trustee

Since January 1993

Consultant; Director or Trustee of the Retail Funds (since January 1993) and the Institutional Funds (since July 2003); member of the Utah Regional Advisory Board of Pacific Corp. (utility company); formerly Managing Director of Summit Ventures LLC (2000-2004) (lobbying and consulting firm); United States Senator (R-Utah) (1974-1992) and Chairman, Senate Banking Committee (1980-1986), Mayor of Salt Lake City, Utah (1971-1974), Astronaut, Space Shuttle Discovery (April 12-19, 1985), and Vice Chairman, Huntsman Corporation (chemical company).

197

Director of Franklin Covey (time management systems), BMW Bank of North America, Inc. (industrial loan corporation), Escrow Bank USA (industrial loan corporation); United Space Alliance (joint venture between Lockheed Martin and the Boeing Company) and Nuskin Asia Pacific (multilevel marketing); member of the board of various civic and charitable organizations.

Wayne E. Hedien (71)
c/o Kramer Levin Naftalis & Frankel LLP
Counsel to the Independent Trustees
1177 Avenue of the Americas
New York, NY 10036

Trustee

Since September 1997

Retired; Director or Trustee of the Retail Funds; (Since September 1997) and the Institutional Funds (since July 2003); formerly associated with the Allstate Companies (1966-1994), most recently as Chairman of The Allstate Corporation (March 1993-December 1994) and Chairman and Chief Executive Officer of its wholly-owned subsidiary, Allstate Insurance Company (July 1989-December 1994).

197

Director of The PMI Group Inc. (private mortgage insurance); Trustee and Vice Chairman of The Field Museum of Natural History; director of various other business and charitable organizations.

Morgan Stanley California Insured Municipal Income Trust

Trustee and Officer Information continued

Name, Age and Address of
Independent Trustee

Position(s)
Held with Registrant

Term of
Office and
Length of
Time
Served*

Principal Occupation(s)
During Past 5 Years**

Number of Portfolios
in Fund Complex Overseen by Trustee***

Other Directorships
Held by Trustee

Dr. Manuel H. Johnson (56)
c/o Johnson Smick Group, Inc.
888 16th Street, N.W.
Suite 740
Washington, D.C. 20006

Trustee

Since
July 1991

Senior Partner, Johnson Smick International, Inc., a consulting firm; Chairman of the Audit Committee and Director or Trustee of the Retail Funds (since July 1991) and the Institutional Funds (since July 2003); Co-Chairman and a founder of the Group of Seven Council (G7C), an international economic commission; formerly Vice Chairman of the Board of Governors of the Federal Reserve System and Assistant Secretary of the U.S. Treasury.

197

Director of NVR, Inc. (home construction); Director of KFX Energy; Director of RBS Greenwich Capital Holdings (financial holding company).

Joseph J. Kearns (63)
c/o Kearns & Associates LLC
PMB754
23852 Pacific Coast Highway
Malibu, CA 90265

Trustee

Since
July 2003

President, Kearns & Associates LLC (investment consulting); Deputy Chairman of the Audit Committee and Director or Trustee of the Retail Funds (since July 2003) and the Institutional Funds (since August 1994); previously Chairman of the Audit Committee of the Institutional Funds (October 2001-July 2003); formerly CFO of the J. Paul Getty Trust.

198

Director of Electro Rent Corporation (equipment leasing), The Ford Family Foundation, and the UCLA Foundation.

Michael E. Nugent (69)
c/o Triumph Capital, L.P.
445 Park Avenue
New York, NY 10022

Trustee

Since
July 1991

General Partner of Triumph Capital, L.P., a private investment partnership; Chairman of the Insurance Committee and Director or Trustee of the Retail Funds (since July 1991) and the Institutional Funds (since July 2001); formerly Vice President, Bankers Trust Company and BT Capital Corporation (1984-1988).

197

Fergus Reid (73)
c/o Lumelite Plastics Corporation
85 Charles Colman Blvd.
Pawling, NY 12564

Trustee

Since
July 2003

Chairman of Lumelite Plastics Corporation; Chairman of the Governance Committee and Director or Trustee of the Retail Funds (since July 2003) and the Institutional Funds (since June 1992).

198

Trustee and Director of certain investment companies in the JPMorgan Funds complex managed by J.P. Morgan Investment Management Inc.

Morgan Stanley California Insured Municipal Income Trust

Trustee and Officer Information continued

Interested Trustees:

Name, Age and Address of
Interested Trustee

Position(s)
Held with Registrant

Term of
Office and
Length of
Time
Served*

Principal Occupation(s)
During Past 5 Years**

Number of Portfolios
in Fund Complex Overseen by Trustee***

Other Directorships
Held by Trustee

Charles A. Fiumefreddo (72)
c/o Morgan Stanley Trust
Harborside Financial Center,
Plaza Two,
Jersey City, NJ 07311

Chairman of the Board and Trustee

Since
July 1991

Chairman and Director or Trustee of the Retail Funds (since July 1991) and the Institutional Funds (since July 2003); formerly Chief Executive Officer of the Retail Funds (until September 2002).

197

None

James F. Higgins (57)
c/o Morgan Stanley Trust
Harborside Financial Center,
Plaza Two,
Jersey City, NJ 07311

Trustee

Since
June 2000

Director or Trustee of the Retail Funds (since June 2000) and the Institutional Funds (since July 2003); Senior Advisor of Morgan Stanley (since August 2000); Director of the Distributor and Dean Witter Realty Inc.; previously President and Chief Operating Officer of the Private Client Group of Morgan Stanley (May 1999-August 2000), and President and Chief Operating Officer of Individual Securities of Morgan Stanley (February 1997-May 1999).

197

Director of AXA Financial, Inc. and The Equitable Life Assurance Society of the United States (financial services).

This is the earliest date the Trustee began serving the funds advised by Morgan Stanley Investment Advisors Inc. (the "Investment Adviser") (the "Retail Funds").

The dates referenced below indicating commencement of services as Director/Trustee for the Retail Funds and the funds advised by Morgan Stanley Investment Management Inc. and Morgan Stanley AIP GP LP (the "Institutional Funds") reflect the earliest date the Director/Trustee began serving the Retail or Institutional Funds, as applicable.

***

The Fund Complex includes all open-end and closed-end funds (including all of their portfolios) advised by the Investment Adviser and any funds that have an investment adviser that is an affiliated person of the Investment Adviser (including, but not limited to, Morgan Stanley Investment Management Inc.).

Morgan Stanley California Insured Municipal Income Trust

Trustee and Officer Information continued

Officers:

Name, Age and Address of
Executive Officer

Position(s)
Held with
Registrant

Term of
Office and
Length of
Time
Served*

Principal Occupation(s) During Past 5 Years**

Ronald E. Robison (66)
1221 Avenue of the Americas
New York, NY 10020

President and Principal Executive Officer

Since May 2003

President (since September 2005) and Principal Executive Officer of funds in the Fund Complex (since May 2003); Managing Director of Morgan Stanley & Co. Incorporated and Morgan Stanley; Managing Director and Director of Morgan Stanley Investment Management Inc., Morgan Stanley Distribution Inc. and Morgan Stanley Distributors Inc.; Managing Director, Chief Administrative Officer and Director of Morgan Stanley Investment Advisors Inc. and Morgan Stanley Services Company Inc.; Chief Executive Officer and Director of Morgan Stanley Trust; Director of Morgan Stanley SICAV (since May 2004); President (since September 2005) and Principal Executive Officer (since May 2003) of the Van Kampen Funds; previously, Executive Vice President (July 2003-September 2005) of funds in the Fund Complex and the Van Kampen Funds. He was also previously President and Director of the Institutional Funds (March 2001-July 2003), Chief Global Operations Officer of Morgan Stanley Investment Management Inc. and Chief Executive Officer and Chairman of Van Kampen Investor Services.

Joseph J. McAlinden (62)
1221 Avenue of the Americas
New York, NY 10020

Vice President

Since July 1995

Managing Director and Chief Investment Officer of the Investment Adviser and Morgan Stanley Investment Management Inc.; Chief Investment Officer of the Van Kampen Funds; Vice President of the Institutional Funds (since July 2003) and the Retail Funds (since July 1995).

Barry Fink (50)
1221 Avenue of the Americas
New York, NY 10020

Vice President

Since
February 1997

General Counsel (since May 2000) and Managing Director (since December 2000) of Morgan Stanley Investment Management; Managing Director (since December 2000), Secretary (since February 1997) and Director of the Investment Adviser and the Administrator; Vice President of the Retail Funds; Assistant Secretary of Morgan Stanley DW; Vice President of the Institutional Funds (since July 2003); Managing Director, Secretary and Director of the Distributor; previously Secretary (February 1997-July 2003) and General Counsel (February 1997-April 2004) of the Retail Funds; Vice President and Assistant General Counsel of the Investment Adviser and the Administrator (February 1997-December 2001).

Amy R. Doberman (43)
1221 Avenue of Americas
New York, NY 10020

Vice President

Since July 2004

Managing Director and General Counsel, U.S. Investment Management; Managing Director of Morgan Stanley Investment Management Inc. and the Investment Adviser, Vice President of the Institutional and Retail Funds (since July 2004); Vice President of the Van Kampen Funds (since August 2004); previously, Managing Director and General Counsel — Americas, UBS Global Asset Management (July 2000 – July 2004) and General Counsel, Aeltus Investment Management Inc. (January 1997 – July 2000).

Carsten Otto (41)
1221 Avenue of the Americas
New York, NY 10020

Chief Compliance
Officer

Since October
2004

Executive Director and U.S. Director of Compliance for Morgan Stanley Investment Management (since October 2004); Executive Director of the Investment Adviser and Morgan Stanley Investment Management Inc.; formerly Assistant Secretary and Assistant General Counsel of the Morgan Stanley Retail Funds.

Morgan Stanley California Insured Municipal Income Trust

Trustee and Officer Information continued

Name, Age and Address of
Executive Officer

Position(s)
Held with
Registrant

Term of
Office and
Length of
Time
Served*

Principal Occupation(s) During Past 5 Years**

Stefanie V. Chang (38)
1221 Avenue of the Americas
New York, NY 10020

Vice President

Since July 2003

Executive Director of Morgan Stanley & Co. Incorporated, Morgan Stanley Investment Management Inc. and the Investment Adviser; Vice President of the Institutional Funds (since December 1997) and the Retail Funds (since July 2003); formerly practiced law with the New York law firm of Rogers & Wells (now Clifford Chance US LLP).

Francis J. Smith (40)
c/o Morgan Stanley Trust
Harborside Financial Center,
Plaza Two,
Jersey City, NJ 07311

Treasurer and Chief Financial Officer

Treasurer since July 2003 and Chief Financial Officer since September 2002

Executive Director of the Investment Adviser and the Administrator (since December 2001); previously, Vice President of the Retail Funds (September 2002-July 2003); Vice President of the Investment Adviser and the Administrator (August 2000-November 2001).

Thomas F. Caloia (59)
c/o Morgan Stanley Trust
Harborside Financial Center,
Plaza Two,
Jersey City, NJ 07311

Vice President

Since July 2003

Executive Director (since December 2002) and Assistant Treasurer of the Investment Adviser, the Distributor and the Administrator; previously Treasurer of the Retail Funds (April 1989-July 2003); formerly First Vice President of the Investment Adviser, the Distributor and the Administrator.

Mary E. Mullin (38)
1221 Avenue of the Americas
New York, NY 10020

Secretary

Since July 2003

Executive Director of Morgan Stanley & Co. Incorporated, Morgan Stanley Investment Management Inc. and the Investment Adviser; Secretary of the Institutional Funds (since June 1999) and the Retail Funds (since July 2003); formerly practiced law with the New York law firms of McDermott, Will & Emery and Skadden, Arps, Slate, Meagher & Flom LLP.

This is the earliest date the Officer began serving the Retail Funds. Each Officer serves an indefinite term, until his or her successor is elected.

The dates referenced below indicating commencement of service as an Officer for the Retail and Institutional Funds reflect the earliest date the Officer began serving the Retail or Institutional Funds, as applicable.

In accordance with Section 303A.12(a) of the New York Stock Exchange Listed Company Manual, the Trust's Annual CEO Certification certifying as to compliance with NYSE's Corporate Governance Listing Standards was submitted to the Exchange on January 7, 2005.

The Trust's Principal Executive Officer and Principal Financial Officer Certifications required by Section 302 of the Sarbanes-Oxley Act of 2002 were filed with the Fund's N-CSR and are available on the Securities and Exchange Commission's Web site at http://www.sec.gov.

2005 Federal Tax Notice (unaudited)

For the year ended October 31, 2005, all of the Trust's dividends from net investment income received by both common and preferred shareholder classes were exempt interest dividends, excludable from gross income for Federal income tax purposes.


Trustees Michael Bozic Charles A. Fiumefreddo Edwin J. Garn Wayne E. Hedien James F. Higgins Dr. Manuel H. Johnson Joseph J. Kearns Michael E. Nugent Fergus Reid Officers Charles A. Fiumefreddo Chairman of the Board Ronald E. Robison President and Principal Executive Officer Joseph J. McAlinden Vice President Barry Fink Vice President Amy R. Doberman Vice President Carsten Otto Chief Compliance Officer Stefanie V. Chang Vice President Francis J. Smith Treasurer and Chief Financial Officer Thomas F. Caloia Vice President Mary E. Mullin Secretary Transfer Agent Morgan Stanley Trust Harborside Financial Center, Plaza Two Jersey City, New Jersey 07311 Independent Registered Public Accounting Firm Deloitte & Touche LLP Two World Financial Center New York, New York 10281 Investment Adviser Morgan Stanley Investment Advisors Inc. 1221 Avenue of the Americas New York, New York 10020 Investments and services offered through Morgan Stanley DW Inc., member SIPC. © 2005 Morgan Stanley 38503RPT-RA05-01049P-Y10/05		MORGAN STANLEY FUNDS
		Morgan Stanley California Insured Municipal Income Trust Annual Report October 31, 2005




Item 2.  Code of Ethics.

(a) The Trust has adopted a code of ethics (the "Code of Ethics") that applies
to its principal executive officer, principal financial officer, principal
accounting officer or controller, or persons performing similar functions,
regardless of whether these individuals are employed by the Trust or a third
party.

(b) No information need be disclosed pursuant to this paragraph.

(c) The Trust has amended its Code of Ethics during the period covered by the
shareholder report presented in Item 1 hereto to delete from the end of the
following paragraph on page 2 of the Code the phrase "to the detriment of the
Fund.":

"Each Covered Officer must not use his personal influence or personal
relationship improperly to influence investment decisions or financial reporting
by the Fund whereby the Covered Officer would benefit personally (directly or
indirectly)."

Additionally, Exhibit B was amended to remove Mitchell M. Merin as a covered
officer.

(d) Not applicable.

(e) Not applicable.

(f)

    (1) The Trust's Code of Ethics is attached hereto as Exhibit A.

    (2) Not applicable.

    (3) Not applicable.

Item 3.  Audit Committee Financial Expert.

The Trust's Board of Trustees has determined that it has two "audit committee
financial experts" serving on its audit committee, each of whom are
"independent" Trustees: Dr. Manuel H. Johnson and Joseph J. Kearns. Under
applicable securities laws, a person who is determined to be an audit committee
financial expert will not be deemed an "expert" for any purpose, including
without limitation for the purposes of Section 11 of the Securities Act of 1933,
as a result of being designated or identified as an audit committee financial
expert. The designation or identification of a person as an audit committee
financial expert does not impose on such person any duties, obligations, or
liabilities that are greater than the duties, obligations, and liabilities
imposed on such person as a member of the audit committee and Board of Trustees
in the absence of such designation or identification.





                                       2


Item 4.  Principal Accountant Fees and Services.

(a)(b)(c)(d) and (g). Based on fees billed for the periods shown:

   2005
                                            REGISTRANT       COVERED ENTITIES(1)
      AUDIT FEES........................     $ 30,448        N/A

      NON-AUDIT FEES
                AUDIT-RELATED FEES......     $  6,105 (2)    $ (2)
                TAX FEES................     $  5,026 (3)    $ (4)
                ALL OTHER FEES..........     $  -            $ -
      TOTAL NON-AUDIT FEES..............     $ 11,131        $

      TOTAL.............................     $ 41,579        $


   2004
                                            REGISTRANT       COVERED ENTITIES(1)
      AUDIT FEES........................     $ 28,989        N/A

      NON-AUDIT FEES
                AUDIT-RELATED FEES......        5,752 (2)    $ 5,067,400 (2)
                TAX FEES................     $  4,455 (3)    $   545,053 (4)
                ALL OTHER FEES..........     $  -            $ - (5)
      TOTAL NON-AUDIT FEES..............     $ 10,207        $ 5,612,453

      TOTAL.............................     $ 39,196        $ 5,612,453

      N/A- Not applicable, as not required by Item 4.

      (1)   Covered Entities include the Adviser (excluding
            sub-advisors) and any entity controlling, controlled by or
            under common control with the Adviser that provides ongoing
            services to the Registrant.
      (2)   Audit-Related Fees represent assurance and related services
            provided that are reasonably related to the performance of
            the audit of the financial statements of the Covered
            Entities' and funds advised by the Adviser or its
            affiliates, specifically data verification and agreed-upon
            procedures related to asset securitizations and agreed-upon
            procedures engagements.
      (3)   Tax Fees represent tax compliance, tax planning and tax
            advice services provided in connection with the preparation
            and review of the Registrant's tax returns.
      (4)   Tax Fees represent tax compliance, tax planning and tax
            advice services provided in connection with the review of
            Covered Entities' tax returns.
      (5)   All other fees represent project management for future
            business applications and improving business and operational
            processes.



                                       3


(e)(1) The audit committee's pre-approval policies and procedures are as
follows:

                                                                      APPENDIX A

                                 AUDIT COMMITTEE
                          AUDIT AND NON-AUDIT SERVICES
                       PRE-APPROVAL POLICY AND PROCEDURES
                                     OF THE
                  MORGAN STANLEY RETAIL AND INSTITUTIONAL FUNDS

                    AS ADOPTED AND AMENDED JULY 23, 2004,(1)


     1. STATEMENT OF PRINCIPLES

The Audit Committee of the Board is required to review and, in its sole
discretion, pre-approve all Covered Services to be provided by the Independent
Auditors to the Fund and Covered Entities in order to assure that services
performed by the Independent Auditors do not impair the auditor's independence
from the Fund.

The SEC has issued rules specifying the types of services that an independent
auditor may not provide to its audit client, as well as the audit committee's
administration of the engagement of the independent auditor. The SEC's rules
establish two different approaches to pre-approving services, which the SEC
considers to be equally valid. Proposed services either: may be pre-approved
without consideration of specific case-by-case services by the Audit Committee
("general pre-approval"); or require the specific pre-approval of the Audit
Committee or its delegate ("specific pre-approval"). The Audit Committee
believes that the combination of these two approaches in this Policy will result
in an effective and efficient procedure to pre-approve services performed by the
Independent Auditors. As set forth in this Policy, unless a type of service has
received general pre-approval, it will require specific pre-approval by the
Audit Committee (or by any member of the Audit Committee to which pre-approval
authority has been delegated) if it is to be provided by the Independent
Auditors. Any proposed services exceeding pre-approved cost levels or budgeted
amounts will also require specific pre-approval by the Audit Committee.

The appendices to this Policy describe the Audit, Audit-related, Tax and All
Other services that have the general pre-approval of the Audit Committee. The
term of any general pre-approval is 12 months from the date of pre-approval,
unless the Audit Committee considers and provides a different period and states
otherwise. The Audit Committee will annually review and pre-approve the services
that may be provided by the Independent Auditors without obtaining specific
pre-approval from the Audit Committee. The Audit Committee will add to or
subtract from the list of general pre-approved services from time to time, based
on subsequent determinations.

----------------
(1)  This Audit Committee Audit and Non-Audit Services Pre-Approval Policy and
     Procedures (the "Policy"), adopted as of the date above, supersedes and
     replaces all prior versions that may have been adopted from time to time.



                                       4


The purpose of this Policy is to set forth the policy and procedures by which
the Audit Committee intends to fulfill its responsibilities. It does not
delegate the Audit Committee's responsibilities to pre-approve services
performed by the Independent Auditors to management.

The Fund's Independent Auditors have reviewed this Policy and believes that
implementation of the Policy will not adversely affect the Independent Auditors'
independence.

     2. DELEGATION

As provided in the Act and the SEC's rules, the Audit Committee may delegate
either type of pre-approval authority to one or more of its members. The member
to whom such authority is delegated must report, for informational purposes
only, any pre-approval decisions to the Audit Committee at its next scheduled
meeting.

     3. AUDIT SERVICES

The annual Audit services engagement terms and fees are subject to the specific
pre-approval of the Audit Committee. Audit services include the annual financial
statement audit and other procedures required to be performed by the Independent
Auditors to be able to form an opinion on the Fund's financial statements. These
other procedures include information systems and procedural reviews and testing
performed in order to understand and place reliance on the systems of internal
control, and consultations relating to the audit. The Audit Committee will
approve, if necessary, any changes in terms, conditions and fees resulting from
changes in audit scope, Fund structure or other items.

In addition to the annual Audit services engagement approved by the Audit
Committee, the Audit Committee may grant general pre-approval to other Audit
services, which are those services that only the Independent Auditors reasonably
can provide. Other Audit services may include statutory audits and services
associated with SEC registration statements (on Forms N-1A, N-2, N-3, N-4,
etc.), periodic reports and other documents filed with the SEC or other
documents issued in connection with securities offerings.

The Audit Committee has pre-approved the Audit services in Appendix B.1. All
other Audit services not listed in Appendix B.1 must be specifically
pre-approved by the Audit Committee (or by any member of the Audit Committee to
which pre-approval has been delegated).

     4. AUDIT-RELATED SERVICES

Audit-related services are assurance and related services that are reasonably
related to the performance of the audit or review of the Fund's financial
statements and, to the extent they are Covered Services, the Covered Entities or
that are traditionally performed by the Independent Auditors. Because the Audit
Committee believes that the provision of Audit-related services does not impair
the independence of the auditor and is consistent with the SEC's rules on
auditor independence, the Audit Committee may grant general pre-approval to
Audit-related services. Audit-related services include, among others, accounting
consultations related to accounting, financial reporting or disclosure matters


                                       5


not classified as "Audit services"; assistance with understanding and
implementing new accounting and financial reporting guidance from rulemaking
authorities; agreed-upon or expanded audit procedures related to accounting
and/or billing records required to respond to or comply with financial,
accounting or regulatory reporting matters; and assistance with internal control
reporting requirements under Forms N-SAR and/or N-CSR.

The Audit Committee has pre-approved the Audit-related services in Appendix B.2.
All other Audit-related services not listed in Appendix B.2 must be specifically
pre-approved by the Audit Committee (or by any member of the Audit Committee to
which pre-approval has been delegated).

     5. TAX SERVICES

The Audit Committee believes that the Independent Auditors can provide Tax
services to the Fund and, to the extent they are Covered Services, the Covered
Entities, such as tax compliance, tax planning and tax advice without impairing
the auditor's independence, and the SEC has stated that the Independent Auditors
may provide such services.

Pursuant to the preceding paragraph, the Audit Committee has pre-approved the
Tax Services in Appendix B.3. All Tax services in Appendix B.3 must be
specifically pre-approved by the Audit Committee (or by any member of the Audit
Committee to which pre-approval has been delegated).

     6. ALL OTHER SERVICES

The Audit Committee believes, based on the SEC's rules prohibiting the
Independent Auditors from providing specific non-audit services, that other
types of non-audit services are permitted. Accordingly, the Audit Committee
believes it may grant general pre-approval to those permissible non-audit
services classified as All Other services that it believes are routine and
recurring services, would not impair the independence of the auditor and are
consistent with the SEC's rules on auditor independence.

The Audit Committee has pre-approved the All Other services in Appendix B.4.
Permissible All Other services not listed in Appendix B.4 must be specifically
pre-approved by the Audit Committee (or by any member of the Audit Committee to
which pre-approval has been delegated).

     7. PRE-APPROVAL FEE LEVELS OR BUDGETED AMOUNTS

Pre-approval fee levels or budgeted amounts for all services to be provided by
the Independent Auditors will be established annually by the Audit Committee.
Any proposed services exceeding these levels or amounts will require specific
pre-approval by the Audit Committee. The Audit Committee is mindful of the
overall relationship of fees for audit and non-audit services in determining
whether to pre-approve any such services.

     8. PROCEDURES

All requests or applications for services to be provided by the Independent
Auditors that do not require specific approval by the Audit Committee will be
submitted to the Fund's Chief Financial Officer and must include a detailed
description of the services to be


                                       6


rendered. The Fund's Chief Financial Officer will determine whether such
services are included within the list of services that have received the general
pre-approval of the Audit Committee. The Audit Committee will be informed on a
timely basis of any such services rendered by the Independent Auditors. Requests
or applications to provide services that require specific approval by the Audit
Committee will be submitted to the Audit Committee by both the Independent
Auditors and the Fund's Chief Financial Officer, and must include a joint
statement as to whether, in their view, the request or application is consistent
with the SEC's rules on auditor independence.

The Audit Committee has designated the Fund's Chief Financial Officer to monitor
the performance of all services provided by the Independent Auditors and to
determine whether such services are in compliance with this Policy. The Fund's
Chief Financial Officer will report to the Audit Committee on a periodic basis
on the results of its monitoring. Both the Fund's Chief Financial Officer and
management will immediately report to the chairman of the Audit Committee any
breach of this Policy that comes to the attention of the Fund's Chief Financial
Officer or any member of management.

     9. ADDITIONAL REQUIREMENTS

The Audit Committee has determined to take additional measures on an annual
basis to meet its responsibility to oversee the work of the Independent Auditors
and to assure the auditor's independence from the Fund, such as reviewing a
formal written statement from the Independent Auditors delineating all
relationships between the Independent Auditors and the Fund, consistent with
Independence Standards Board No. 1, and discussing with the Independent Auditors
its methods and procedures for ensuring independence.

     10. COVERED ENTITIES

Covered Entities include the Fund's investment adviser(s) and any entity
controlling, controlled by or under common control with the Fund's investment
adviser(s) that provides ongoing services to the Fund(s). Beginning with
non-audit service contracts entered into on or after May 6, 2003, the Fund's
audit committee must pre-approve non-audit services provided not only to the
Fund but also to the Covered Entities if the engagements relate directly to the
operations and financial reporting of the Fund. This list of Covered Entities
would include:

         Morgan Stanley Retail Funds
         ---------------------------
         Morgan Stanley Investment Advisors Inc.
         Morgan Stanley & Co. Incorporated
         Morgan Stanley DW Inc.
         Morgan Stanley Investment Management Inc.
         Morgan Stanley Investment Management Limited
         Morgan Stanley Investment Management Private Limited
         Morgan Stanley Asset & Investment Trust Management Co., Limited
         Morgan Stanley Investment Management Company
         Van Kampen Asset Management
         Morgan Stanley Services Company, Inc.
         Morgan Stanley Distributors Inc.
         Morgan Stanley Trust FSB

                                       7


         Morgan Stanley Institutional Funds
         ----------------------------------
         Morgan Stanley Investment Management Inc.
         Morgan Stanley Investment Advisors Inc.
         Morgan Stanley Investment Management Limited
         Morgan Stanley Investment Management Private Limited
         Morgan Stanley Asset & Investment Trust Management Co., Limited
         Morgan Stanley Investment Management Company
         Morgan Stanley & Co. Incorporated
         Morgan Stanley Distribution, Inc.
         Morgan Stanley AIP GP LP
         Morgan Stanley Alternative Investment Partners LP

(e)(2) Beginning with non-audit service contracts entered into on or after May
6, 2003, the audit committee also is required to pre-approve services to Covered
Entities to the extent that the services are determined to have a direct impact
on the operations or financial reporting of the Registrant. 100% of such
services were pre-approved by the audit committee pursuant to the Audit
Committee's pre-approval policies and procedures (attached hereto).

(f) Not applicable.

(g) See table above.

(h) The audit committee of the Board of Trustees has considered whether the
provision of services other than audit services performed by the auditors to the
Registrant and Covered Entities is compatible with maintaining the auditors'
independence in performing audit services.

Item 5. Audit Committee of Listed Registrants.

(a) The Trust has a separately-designated standing audit committee established
in accordance with Section 3(a)(58)(A) of the Exchange Act whose members are:
Michael Bozic, Edwin J. Garn, Wayne E. Hedien, Manual H. Johnson, Joseph J.
Kearns, Michael Nugent and Fergus Reid.

(b) Not applicable.


Item 6.

See Item 1.


                                       8


Item 7. Disclosure of Proxy Voting Policies and Procedures for Closed-End
Management Investment Companies.

The Trust invests in exclusively non-voting securities and therefore this item
is not applicable.


Item 8. Portfolio Managers of Closed-End Management Investment Companies

Applicable only to reports covering periods ending on or after December 31,
2005.




                                       9



Item 9. Closed-End Fund Repurchases



                    REGISTRANT PURCHASE OF EQUITY SECURITIES
------------------------------- --------------- ------------------ --------------------- ------------------------
Period                          (a) Total       (b) Average        (c) Total Number of   (d) Maximum Number (or
                                Number of       Price Paid per     Shares (or Units)     Approximate Dollar
                                Shares (or      Share (or Unit)    Purchased as Part     Value) of Shares (or
                                Units)                             of Publicly           Units) that May Yet Be
                                Purchased                          Announced Plans or    Purchased Under the
                                                                   Programs              Plans or Programs
------------------------------- --------------- ------------------ --------------------- ------------------------

November 1, 2004 --
November 30, 2004               26,000          13.3277                    N/A                     N/A
------------------------------- --------------- ------------------ --------------------- ------------------------
December 1, 2004 --
December 31, 2004               53,600          13.0503                    N/A                     N/A
------------------------------- --------------- ------------------ --------------------- ------------------------
January 1, 2005 --
January 31, 2005                47,900          13.3779                    N/A                     N/A
------------------------------- --------------- ------------------ --------------------- ------------------------
February 1, 2005 --
February 28, 2005               35,300          13.6142                    N/A                     N/A
------------------------------- --------------- ------------------ --------------------- ------------------------
March 1, 2005 --
March 31, 2005                  32,600          13.4308                    N/A                     N/A
------------------------------- --------------- ------------------ --------------------- ------------------------
April 1, 2005 --
April 30, 2005                  26,200          13.1785                    N/A                     N/A
------------------------------- --------------- ------------------ --------------------- ------------------------
May 1, 2005 ---
May 31, 2005                    29,151          13.4813                    N/A                     N/A
------------------------------- --------------- ------------------ --------------------- ------------------------
June 1, 2005 ---
June 30, 2005                   27,600          13.8286                    N/A                     N/A
------------------------------- --------------- ------------------ --------------------- ------------------------
July 1, 2005 ---
July 31, 2005                   28,100          14.0015                    N/A                     N/A
------------------------------- --------------- ------------------ --------------------- ------------------------
August 1, 2005 ---
August 31, 2005                 22,900          13.9968                    N/A                     N/A
------------------------------- --------------- ------------------ --------------------- ------------------------
September 1, 2005 ---
September 30, 2005              31,500          13.8876                    N/A                     N/A
------------------------------- --------------- ------------------ --------------------- ------------------------
October 1, 2005 ---
October 31, 2005                37,800          13.4743                    N/A                     N/A
------------------------------- --------------- ------------------ --------------------- ------------------------
Total                           398,651         13.5541                    N/A                     N/A
------------------------------- --------------- ------------------ --------------------- ------------------------






                                       10



Item 10. Submission of Matters to a Vote of Security Holders

Not applicable.

Item 11. Controls and Procedures

(a) The Trust's principal executive officer and principal financial officer have
concluded that the Trust's disclosure controls and procedures are sufficient to
ensure that information required to be disclosed by the Trust in this Form N-CSR
was recorded, processed, summarized and reported within the time periods
specified in the Securities and Exchange Commission's rules and forms, based
upon such officers' evaluation of these controls and procedures as of a date
within 90 days of the filing date of the report.

(b) There were no changes in the registrant's internal control over financial
reporting that occurred during the registrant's most recent fiscal half-year
(the registrant's second fiscal half-year in the case of an annual report) that
has materially affected, or is reasonably likely to materially affect, the
registrant's internal control over financial reporting.

Item 12. Exhibits

(a) The Code of Ethics for Principal Executive and Senior Financial Officers is
attached hereto.

(b) A separate certification for each principal executive officer and principal
financial officer of the registrant are attached hereto as part of EX-99.CERT.















                                       11




                                   SIGNATURES

         Pursuant to the requirements of the Securities Exchange Act of 1934 and
the Investment Company Act of 1940, the registrant has duly caused this report
to be signed on its behalf by the undersigned, thereunto duly authorized.

Morgan Stanley California Insured Municipal Income Trust

/s/ Ronald E. Robison
Ronald E. Robison
Principal Executive Officer
December 19, 2005

         Pursuant to the requirements of the Securities Exchange Act of 1934 and
the Investment Company Act of 1940, this report has been signed by the following
persons on behalf of the registrant and in the capacities and on the dates
indicated.

/s/ Ronald E. Robison
Ronald E. Robison
Principal Executive Officer
December 19, 2005

/s/ Francis Smith
Francis Smith
Principal Financial Officer
December 19, 2005
















                                       12


                                                                    EXHIBIT 12 A



      CODE OF ETHICS FOR PRINCIPAL EXECUTIVE AND SENIOR FINANCIAL OFFICERS
            ADOPTED SEPTEMBER 28, 2004, AS AMENDED SEPTEMBER 20, 2005


I.   This Code of Ethics (the "Code") for the investment companies within the
     Morgan Stanley complex identified in Exhibit A (collectively, "Funds" and
     each, a "Fund") applies to each Fund's Principal Executive Officer,
     President, Principal Financial Officer and Treasurer (or persons performing
     similar functions) ("Covered Officers" each of whom are set forth in
     Exhibit B) for the purpose of promoting:

          o    honest and ethical conduct, including the ethical handling of
               actual or apparent conflicts of interest between personal and
               professional relationships.

          o    full, fair, accurate, timely and understandable disclosure in
               reports and documents that a company files with, or submits to,
               the Securities and Exchange Commission ("SEC") and in other
               public communications made by the Fund;

          o    compliance with applicable laws and governmental rules and
               regulations;

          o    prompt internal reporting of violations of the Code to an
               appropriate person or persons identified in the Code; and

          o    accountability for adherence to the Code.

               Each Covered Officer should adhere to a high standard of business
ethics and should be sensitive to situations that may give rise to actual as
well as apparent conflicts of interest. Any question about the application of
the Code should be referred to the General Counsel or his/her designee (who is
set forth in Exhibit C).

II.  COVERED OFFICERS SHOULD HANDLE ETHICALLY ACTUAL AND APPARENT CONFLICTS OF
     INTEREST

     OVERVIEW. A "conflict of interest" occurs when a Covered Officer's private
interest interferes, or appears to interfere, with the interests of, or his
service to, the Fund. For example, a conflict of interest would arise if a
Covered Officer, or a member of his family, receives improper personal benefits
as a result of his position with the Fund.

     Certain conflicts of interest arise out of the relationships between
Covered Officers and the Fund and already are subject to conflict of interest
provisions in the


                                       13


Investment Company Act of 1940 ("Investment Company Act") and the Investment
Advisers Act of 1940 ("Investment Advisers Act"). For example, Covered Officers
may not individually engage in certain transactions (such as the purchase or
sale of securities or other property) with the Fund because of their status as
"affiliated persons" (as defined in the Investment Company Act) of the Fund. The
Fund's and its investment adviser's compliance programs and procedures are
designed to prevent, or identify and correct, violations of these provisions.
This Code does not, and is not intended to, repeat or replace these programs and
procedures, and such conflicts fall outside the parameters of this Code, unless
or until the General Counsel determines that any violation of such programs and
procedures is also a violation of this Code.

     Although typically not presenting an opportunity for improper personal
benefit, conflicts may arise from, or as a result of, the contractual
relationship between the Fund and its investment adviser of which the Covered
Officers are also officers or employees. As a result, this Code recognizes that
the Covered Officers will, in the normal course of their duties (whether
formally for the Fund or for the investment adviser, or for both), be involved
in establishing policies and implementing decisions that will have different
effects on the Fund and its investment adviser. The participation of the Covered
Officers in such activities is inherent in the contractual relationship between
the Fund and the investment adviser and is consistent with the performance by
the Covered Officers of their duties as officers of the Fund. Thus, if performed
in conformity with the provisions of the Investment Company Act and the
Investment Advisers Act, such activities will be deemed to have been handled
ethically. In addition, it is recognized by the Funds' Boards of
Directors/Trustees ("Boards") that the Covered Officers may also be officers or
employees of one or more other investment companies covered by this or other
codes.

     Other conflicts of interest are covered by the Code, even if such conflicts
of interest are not subject to provisions in the Investment Company Act and the
Investment Advisers Act. The following list provides examples of conflicts of
interest under the Code, but Covered Officers should keep in mind that these
examples are not exhaustive. The overarching principle is that the personal
interest of a Covered Officer should not be placed improperly before the
interest of the Fund.

     Each Covered Officer must not:

          o    use his personal influence or personal relationships improperly
               to influence investment decisions or financial reporting by the
               Fund whereby the Covered Officer would benefit personally
               (directly or indirectly);

          o    cause the Fund to take action, or fail to take action, for the
               individual personal benefit of the Covered Officer rather than
               the benefit of the Fund; or

          o    use material non-public knowledge of portfolio transactions made
               or contemplated for, or actions proposed to be taken by, the Fund
               to trade personally or cause others to trade personally in
               contemplation of the market effect of such transactions.



                                       14


     Each Covered Officer must, at the time of signing this Code, report to the
General Counsel all affiliations or significant business relationships outside
the Morgan Stanley complex and must update the report annually.

     Conflict of interest situations should always be approved by the General
Counsel and communicated to the relevant Fund or Fund's Board. Any activity or
relationship that would present such a conflict for a Covered Officer would
likely also present a conflict for the Covered Officer if an immediate member of
the Covered Officer's family living in the same household engages in such an
activity or has such a relationship. Examples of these include:

          o    service or significant business relationships as a director on
               the board of any public or private company;

          o    accepting directly or indirectly, anything of value, including
               gifts and gratuities in excess of $100 per year from any person
               or entity with which the Fund has current or prospective business
               dealings, not including occasional meals or tickets for theatre
               or sporting events or other similar entertainment; provided it is
               business-related, reasonable in cost, appropriate as to time and
               place, and not so frequent as to raise any question of
               impropriety;

          o    any ownership interest in, or any consulting or employment
               relationship with, any of the Fund's service providers, other
               than its investment adviser, principal underwriter, or any
               affiliated person thereof; and

          o    a direct or indirect financial interest in commissions,
               transaction charges or spreads paid by the Fund for effecting
               portfolio transactions or for selling or redeeming shares other
               than an interest arising from the Covered Officer's employment,
               such as compensation or equity ownership.

III. DISCLOSURE AND COMPLIANCE

          o    Each Covered Officer should familiarize himself/herself with the
               disclosure and compliance requirements generally applicable to
               the Funds;

          o    each Covered Officer must not knowingly misrepresent, or cause
               others to misrepresent, facts about the Fund to others, whether
               within or outside the Fund, including to the Fund's
               Directors/Trustees and auditors, or to governmental regulators
               and self-regulatory organizations;

          o    each Covered Officer should, to the extent appropriate within his
               area of responsibility, consult with other officers and employees
               of the Funds and their investment advisers with the goal of
               promoting full, fair, accurate, timely and understandable
               disclosure in the reports and documents the Funds file with, or
               submit to, the SEC and in other public communications made by the
               Funds; and



                                       15


     o    it is the responsibility of each Covered Officer to promote compliance
          with the standards and restrictions imposed by applicable laws, rules
          and regulations.

IV.  REPORTING AND ACCOUNTABILITY

     Each Covered Officer must:

     o    upon adoption of the Code (thereafter as applicable, upon becoming a
          Covered Officer), affirm in writing to the Boards that he has
          received, read and understands the Code;

     o    annually thereafter affirm to the Boards that he has complied with the
          requirements of the Code;

     o    not retaliate against any other Covered Officer, other officer or any
          employee of the Funds or their affiliated persons for reports of
          potential violations that are made in good faith; and

     o    notify the General Counsel promptly if he/she knows or suspects of any
          violation of this Code. Failure to do so is itself a violation of this
          Code.

     The General Counsel is responsible for applying this Code to specific
situations in which questions are presented under it and has the authority to
interpret this Code in any particular situation. However, any waivers(2) sought
by a Covered Officer must be considered by the Board of the relevant Fund or
Funds.

     The Funds will follow these procedures in investigating and enforcing this
Code:

     o    the General Counsel will take all appropriate action to investigate
          any potential violations reported to him;

     o    if, after such investigation, the General Counsel believes that no
          violation has occurred, the General Counsel is not required to take
          any further action;

     o    any matter that the General Counsel believes is a violation will be
          reported to the relevant Fund's Audit Committee;

     o    if the directors/trustees/managing general partners who are not
          "interested persons" as defined by the Investment Company Act (the
          "Independent Directors/Trustees/Managing General Partners") of the
          relevant Fund concur that a violation has occurred, they will consider
          appropriate action,


--------------
(2)  Item 2 of Form N-CSR defines "waiver" as "the approval by the registrant of
     a material departure from a provision of the code of ethics."

                                       16


          which may include review of, and appropriate modifications to,
          applicable policies and procedures; notification to appropriate
          personnel of the investment adviser or its board; or a recommendation
          to dismiss the Covered Officer or other appropriate disciplinary
          actions;

     o    the Independent Directors/Trustees/Managing General Partners of the
          relevant Fund will be responsible for granting waivers of this Code,
          as appropriate; and

     o    any changes to or waivers of this Code will, to the extent required,
          be disclosed as provided by SEC rules.

V.   OTHER POLICIES AND PROCEDURES

     This Code shall be the sole code of ethics adopted by the Funds for
purposes of Section 406 of the Sarbanes-Oxley Act of 2002 and the rules and
forms applicable to registered investment companies thereunder. Insofar as other
policies or procedures of the Funds, the Funds' investment advisers, principal
underwriters, or other service providers govern or purport to govern the
behavior or activities of the Covered Officers who are subject to this Code,
they are superseded by this Code to the extent that they overlap or conflict
with the provisions of this Code unless any provision of this Code conflicts
with any applicable federal or state law, in which case the requirements of such
law will govern. The Funds' and their investment advisers' and principal
underwriters' codes of ethics under Rule 17j-1 under the Investment Company Act
and Morgan Stanley's Code of Ethics are separate requirements applying to the
Covered Officers and others, and are not part of this Code.

VI.  AMENDMENTS

     Any amendments to this Code, other than amendments to Exhibits A, B

or C, must be approved or ratified by a majority vote of the Board of each Fund,
including a majority of Independent Directors/Trustees/Managing General
Partners.

VII. CONFIDENTIALITY

     All reports and records prepared or maintained pursuant to this Code will
be considered confidential and shall be maintained and protected accordingly.
Except as otherwise required by law or this Code, such matters shall not be
disclosed to anyone other than the Independent Directors/Trustees/Managing
General Partners of the relevant Fund or Funds and their counsel, the relevant
Fund or Funds and their counsel and the relevant investment adviser and its
counsel.




                                       17





VIII. INTERNAL USE

     The Code is intended solely for the internal use by the Funds and does not
constitute an admission, by or on behalf of any Fund, as to any fact,
circumstance, or legal conclusion


I have read and understand the terms of the above Code. I recognize the
responsibilities and obligations incurred by me as a result of my being subject
to the Code. I hereby agree to abide by the above Code.


-------------------------

Date:
     --------------------



                                       18



                                    EXHIBIT A
                                    ---------

                                    FUND LIST

                                       AT
                               SEPTEMBER 20, 2005

RETAIL FUNDS
------------

OPEN-END RETAIL FUNDS

     TAXABLE MONEY MARKET FUNDS
     --------------------------

1.   Active Assets Government Securities Trust ("AA Government")

2.   Active Assets Institutional Government Securities Trust ("AA Institutional
     Government")

3.   Active Assets Institutional Money Trust ("AA Institutional Money")

4.   Active Assets Money Trust ("AA Money")

5.   Morgan Stanley Liquid Asset Fund Inc. ("Liquid Asset")

6.   Morgan Stanley U.S. Government Money Market Trust ("Government Money")

     TAX-EXEMPT MONEY MARKET FUNDS
     -----------------------------

7.   Active Assets California Tax-Free Trust ("AA California")

8.   Active Assets Tax-Free Trust ("AA Tax-Free")

9.   Morgan Stanley California Tax-Free Daily Income Trust ("California Tax-Free
     Daily")

10.  Morgan Stanley New York Municipal Money Market Trust ("New York Money")

11.  Morgan Stanley Tax-Free Daily Income Trust ("Tax-Free Daily")

     EQUITY FUNDS
     ------------

12.  Morgan Stanley Aggressive Equity Fund ("Aggressive Equity")+

13.  Morgan Stanley Allocator Fund ("Allocator Fund")+

14.  Morgan Stanley American Opportunities Fund ("American Opportunities")+

15.  Morgan Stanley Biotechnology Fund ("Biotechnology Fund")+

16.  Morgan Stanley Capital Opportunities Trust ("Capital Opportunities")+

17.  Morgan Stanley Developing Growth Securities Trust ("Developing Growth")+

18.  Morgan Stanley Dividend Growth Securities Inc. ("Dividend Growth")+

19.  Morgan Stanley Equally-Weighted S&P 500 Fund ("Equally-Weighted S&P 500")+

20.  Morgan Stanley European Equity Fund Inc. ("European Equity")+

21.  Morgan Stanley Financial Services Trust ("Financial Services")+

22.  Morgan Stanley Fundamental Value Fund ("Fundamental Value")+

23.  Morgan Stanley Global Advantage Fund ("Global Advantage")+



                                       19


24.  Morgan Stanley Global Dividend Growth Securities ("Global Dividend
     Growth")+

25.  Morgan Stanley Global Utilities Fund ("Global Utilities")+

26.  Morgan Stanley Growth Fund ("Growth Fund")+

27.  Morgan Stanley Health Sciences Trust ("Health Sciences")+

28.  Morgan Stanley Income Builder Fund ("Income Builder")+

29.  Morgan Stanley Information Fund ("Information Fund")+

30.  Morgan Stanley International Fund ("International Fund")+

31.  Morgan Stanley International SmallCap Fund ("International SmallCap")+

32.  Morgan Stanley International Value Equity Fund ("International Value")+

33.  Morgan Stanley Japan Fund ("Japan Fund")+

34.  Morgan Stanley KLD Social Index Fund ("KLD Social Index")+

35.  Morgan Stanley Mid-Cap Value Fund (Mid-Cap Value")+

36.  Morgan Stanley Multi-Asset Class Fund ("Multi-Asset Class")+

     o    Domestic Portfolio

37.  Morgan Stanley Nasdaq-100 Index Fund ("Nasdaq-100")+

38.  Morgan Stanley Natural Resource Development Securities Inc. ("Natural
     Resource")+

39.  Morgan Stanley Pacific Growth Fund Inc. ("Pacific Growth")+

40.  Morgan Stanley Real Estate Fund ("Real Estate")+

41.  Morgan Stanley Small-Mid Special Value Fund (Small-Mid Special Value")+

42.  Morgan Stanley S&P 500 Index Fund ("S&P500 Index")+

43.  Morgan Stanley Special Growth Fund ("Special Growth")+

44.  Morgan Stanley Special Value Fund ("Special Value")+

45.  Morgan Stanley Total Market Index Fund ("Total Market Index")+

46.  Morgan Stanley Total Return Trust ("Total Return")+

47.  Morgan Stanley Utilities Fund ("Utilities Fund")+

48.  Morgan Stanley Value Fund ("Value Fund")+

     BALANCED FUNDS
     --------------

49.  Morgan Stanley Balanced Growth Fund ("Balanced Growth")+

50.  Morgan Stanley Balanced Income Fund ("Balanced Income")+

     ASSET ALLOCATION FUND
     ---------------------

51.  Morgan Stanley Strategist Fund ("Strategist Fund")+

     TAXABLE FIXED-INCOME FUNDS
     --------------------------

52.  Morgan Stanley Convertible Securities Trust ("Convertible Securities")+

53.  Morgan Stanley Flexible Income Trust ("Flexible Income")+

54.  Morgan Stanley Income Trust ("Income Trust")+

55.  Morgan Stanley High Yield Securities Inc. ("High Yield Securities")+

56.  Morgan Stanley Limited Duration Fund ("Limited Duration Fund")

57.  Morgan Stanley Mortgage Securities Trust ("Mortgage Securities")+

58.  Morgan Stanley Limited Duration U.S. Treasury Trust ("Limited Duration
     Treasury")

                                       20


59.  Morgan Stanley Total Return Income Securities Fund ("Total Return Income")+

60.  Morgan Stanley U.S. Government Securities Trust ("Government Securities")+

     TAX-EXEMPT FIXED-INCOME FUNDS
     -----------------------------

61.  Morgan Stanley California Tax-Free Income Fund ("California Tax-Free")+

62.  Morgan Stanley Limited Term Municipal Trust ("Limited Term Municipal")

63.  Morgan Stanley New York Tax-Free Income Fund ("New York Tax-Free")+

64.  Morgan Stanley Tax-Exempt Securities Trust ("Tax-Exempt Securities")+

     SPECIAL PURPOSE FUNDS
     ---------------------

65.  Morgan Stanley Select Dimensions Investment Series ("Select Dimensions")

     o    American Opportunities Portfolio

     o    Balanced Growth Portfolio

     o    Capital Opportunities Portfolio

     o    Developing Growth Portfolio

     o    Dividend Growth Portfolio

     o    Equally-Weighted S&P 500 Portfolio

     o    Flexible Income Portfolio

     o    Global Equity Portfolio

     o    Growth Portfolio

     o    Money Market Portfolio

     o    Utilities Portfolio

66.  Morgan Stanley Variable Investment Series ("Variable Investment")

     o    Aggressive Equity Portfolio

     o    Dividend Growth Portfolio

     o    Equity Portfolio

     o    European Growth Portfolio

     o    Global Advantage Portfolio

     o    Global Dividend Growth Portfolio

     o    High Yield Portfolio

     o    Income Builder Portfolio

     o    Information Portfolio

     o    Limited Duration Portfolio

     o    Money Market Portfolio

     o    Quality Income Plus Portfolio

     o    S&P 500 Index Portfolio

     o    Strategist Portfolio

     o    Utilities Portfolio




                                       21


CLOSED-END RETAIL FUNDS

     TAXABLE FIXED-INCOME CLOSED-END FUNDS
     -------------------------------------

67.  Morgan Stanley Government Income Trust ("Government Income")

68.  Morgan Stanley Income Securities Inc. ("Income Securities")

69.  Morgan Stanley Prime Income Trust ("Prime Income")

     TAX-EXEMPT FIXED-INCOME CLOSED-END FUNDS
     ----------------------------------------

70.  Morgan Stanley California Insured Municipal Income Trust ("California
     Insured Municipal")

71.  Morgan Stanley California Quality Municipal Securities ("California Quality
     Municipal")

72.  Morgan Stanley Insured California Municipal Securities ("Insured California
     Securities")

73.  Morgan Stanley Insured Municipal Bond Trust ("Insured Municipal Bond")

74.  Morgan Stanley Insured Municipal Income Trust ("Insured Municipal Income")

75.  Morgan Stanley Insured Municipal Securities ("Insured Municipal
     Securities")

76.  Morgan Stanley Insured Municipal Trust ("Insured Municipal Trust")

77.  Morgan Stanley Municipal Income Opportunities Trust ("Municipal
     Opportunities")

78.  Morgan Stanley Municipal Income Opportunities Trust II ("Municipal
     Opportunities II")

79.  Morgan Stanley Municipal Income Opportunities Trust III ("Municipal
     Opportunities III")

80.  Morgan Stanley Municipal Premium Income Trust ("Municipal Premium")

81.  Morgan Stanley New York Quality Municipal Securities ("New York Quality
     Municipal")

82.  Morgan Stanley Quality Municipal Income Trust ("Quality Municipal Income")

83.  Morgan Stanley Quality Municipal Investment Trust ("Quality Municipal
     Investment")

84.  Morgan Stanley Quality Municipal Securities ("Quality Municipal
     Securities")

+- Denotes Retail Multi-Class Fund

                               INSTITUTIONAL FUNDS
                               -------------------

OPEN-END INSTITUTIONAL FUNDS

1.   Morgan Stanley Institutional Fund, Inc. ("Institutional Fund Inc.")

     Active Portfolios:

          o    Active International Allocation Portfolio

          o    Emerging Markets Portfolio

          o    Emerging Markets Debt Portfolio



                                       22


          o    Equity Growth Portfolio

          o    European Real Estate Portfolio

          o    Focus Equity Portfolio

          o    Global Franchise Portfolio

          o    Global Value Equity Portfolio

          o    International Equity Portfolio

          o    International Magnum Portfolio

          o    International Small Cap Portfolio

          o    Money Market Portfolio

          o    Municipal Money Market Portfolio

          o    Small Company Growth Portfolio

          o    U.S. Real Estate Portfolio

          o    Value Equity Portfolio

     Inactive Portfolios*:

          o    China Growth Portfolio

          o    Gold Portfolio

          o    Large Cap Relative Value Portfolio

          o    MicroCap Portfolio

          o    Mortgage-Backed Securities Portfolio

          o    Municipal Bond Portfolio

          o    U.S. Equity Plus Portfolio

2.   Morgan Stanley Institutional Fund Trust ("Institutional Fund Trust")

     Active Portfolios:

          o    Advisory Foreign Fixed Income II Portfolio

          o    Advisory Foreign Fixed Income Portfolio

          o    Advisory Mortgage Portfolio

          o    Balanced Portfolio

          o    Core Plus Fixed Income Portfolio

          o    Equity Portfolio

          o    High Yield Portfolio

          o    Intermediate Duration Portfolio

          o    International Fixed Income Portfolio

          o    Investment Grade Fixed Income Portfolio

          o    Limited Duration Portfolio

          o    Mid-Cap Growth Portfolio

          o    Municipal Portfolio



-----------------
* Have not commenced or have ceased operations

                                       23


          o    U.S. Core Fixed Income Portfolio

          o    U.S. Mid-Cap Value Portfolio

          o    U.S. Small-Cap Value Portfolio

          o    Value Portfolio

     Inactive Portfolios*:

          o    Balanced Plus Portfolio

          o    Growth Portfolio

          o    Investment Grade Credit Advisory Portfolio

          o    Mortgage Advisory Portfolio

          o    New York Municipal Portfolio

          o    Targeted Duration Portfolio

          o    Value II Portfolio

3.   The Universal Institutional Funds, Inc. ("Universal Funds")

     Active Portfolios:

          o    Core Plus Fixed Income Portfolio

          o    Emerging Markets Debt Portfolio

          o    Emerging Markets Equity Portfolio

          o    Equity and Income Portfolio

          o    Equity Growth Portfolio

          o    Global Franchise Portfolio

          o    Global Value Equity Portfolio

          o    High Yield Portfolio

          o    International Magnum Portfolio

          o    Mid-Cap Growth Portfolio

          o    Money Market Portfolio

          o    Small Company Growth Portfolio

          o    Technology Portfolio

          o    U.S. Mid-Cap Value Portfolio

          o    U.S. Real Estate Portfolio

          o    Value Portfolio

     Inactive Portfolios*:

         o     Balanced Portfolio

         o     Capital Preservation Portfolio

         o     Core Equity Portfolio

         o     International Fixed Income Portfolio

         o     Investment Grade Fixed Income Portfolio

         o     Latin American Portfolio


                                       24


         o     Multi-Asset Class Portfolio

         o     Targeted Duration Portfolio

4.   Morgan Stanley Institutional Liquidity Funds ("Liquidity Funds")

     Active Portfolios:

         o     Government Portfolio

         o     Money Market Portfolio

         o     Prime Portfolio

         o     Tax-Exempt Portfolio

         o     Treasury Portfolio

     Inactive Portfolios*:

         o     Government Securities Portfolio

         o     Treasury Securities Portfolio

CLOSED-END INSTITUTIONAL FUNDS

5.   Morgan Stanley Asia-Pacific Fund, Inc. ("Asia-Pacific Fund")

6.   Morgan Stanley Eastern Europe Fund, Inc. ("Eastern Europe")

7.   Morgan Stanley Emerging Markets Debt Fund, Inc. ("Emerging Markets Debt")

8.   Morgan Stanley Emerging Markets Fund, Inc. ("Emerging Markets Fund")

9.   Morgan Stanley Global Opportunity Bond Fund, Inc. ("Global Opportunity")

10.  Morgan Stanley High Yield Fund, Inc. ("High Yield Fund")

11.  The Latin American Discovery Fund, Inc. ("Latin American Discovery")

12   The Malaysia Fund, Inc. ("Malaysia Fund")

13.  The Thai Fund, Inc. ("Thai Fund")

14.  The Turkish Investment Fund, Inc. ("Turkish Investment")

CLOSED-END FUND OF HEDGE FUNDS

15.  Morgan Stanley Institutional Fund of Hedge Funds ("Fund of Hedge Funds")


                                 IN REGISTRATION

MORGAN STANLEY RETAIL FUNDS

1.   Morgan Stanley American Franchise Fund

FUNDS OF HEDGE FUNDS

1.   Morgan Stanley Absolute Return Fund

2.   Morgan Stanley Institutional Fund of Hedge Funds II


------------------
* Have not commenced or have ceased operations


                                       25





                                    EXHIBIT B
                                    ---------

                               INSTITUTIONAL FUNDS
                                COVERED OFFICERS
                                ----------------

          Ronald E. Robison -President and Principal Executive Officer
            James W. Garrett - Chief Financial Officer and Treasurer

                                  RETAIL FUNDS
                                COVERED OFFICERS
                                ----------------

          Ronald E. Robison -President and Principal Executive Officer
              Francis Smith - Chief Financial Officer and Treasurer

                   MORGAN STANLEY INDIA INVESTMENT FUND, INC.
                                COVERED OFFICERS
                                ----------------

          Ronald E. Robison - President and Principal Executive Officer
            James W. Garrett - Chief Financial Officer and Treasurer




                                       26





                                    EXHIBIT C
                                    ---------

                                 GENERAL COUNSEL
                                 ---------------

                                   Barry Fink














                                       27



                                                                   EXHIBIT 12 B1

                  CERTIFICATION OF PRINCIPAL EXECUTIVE OFFICER

                                 CERTIFICATIONS
                                 --------------

I, Ronald E. Robison, certify that:

1.   I have reviewed this report on Form N-CSR of Morgan Stanley California
     Insured Municipal Income Trust;

2.   Based on my knowledge, this report does not contain any untrue statement of
     a material fact or omit to state a material fact necessary to make the
     statements made, in light of the circumstances under which such statements
     were made, not misleading with respect to the period covered by this
     report;

3.   Based on my knowledge, the financial statements and other financial
     information included in this report, fairly present in all material
     respects the financial condition, results of operations, changes in net
     assets, and cash flows (if the financial statements are required to include
     a statement of cash flows) of the registrant as of, and for, the periods
     presented in this report;

4.   The registrant's other certifying officers and I are responsible for
     establishing and maintaining disclosure controls and procedures (as defined
     in Rule 30a-3(c) under the Investment Company Act of 1940) and internal
     control over financial reporting (as defined in Rule 30a-3(d) under the
     Investment Company Act of 1940) for the registrant and have:

a)   designed such disclosure controls and procedures, or caused such disclosure
     controls and procedures to be designed under our supervision, to ensure
     that material information relating to the registrant, including its
     consolidated subsidiaries, is made known to us by others within those
     entities, particularly during the period in which this report is being
     prepared;

b)   designed such internal control over financial reporting, or caused such
     internal control over financial reporting to be designed under our
     supervision, to provide reasonable assurance regarding the reliability of
     financial reporting and the preparation of financial statements for
     external purposes in accordance with generally accepted accounting
     principles;

c)   evaluated the effectiveness of the registrant's disclosure controls and
     procedures and presented in this report our conclusions about the
     effectiveness of the disclosure controls and procedures, as of a date
     within 90 days prior to the filing date of this report based on such
     evaluation; and

d)   disclosed in this report any change in the registrant's internal control
     over financial reporting that occurred during the registrant's most recent
     fiscal half-year (the registrant's second fiscal half-year in the case of
     an annual report) that has materially affected, or is reasonably likely to
     materially affect, the registrant's internal control over financial
     reporting; and

5.   The registrant's other certifying officer(s) and I have disclosed to the
     registrant's auditors and the audit committee of the registrant's board of
     directors (or persons performing the equivalent functions):



                                       28


a)   all significant deficiencies and material weaknesses in the design or
     operation of internal control over financial reporting which are reasonably
     likely to adversely affect the registrant's ability to record, process,
     summarize, and report financial information; and

b)   any fraud, whether or not material, that involves management or other
     employees who have a significant role in the registrant's internal controls
     over financial reporting.

Date: December 19, 2005

                                                     /s/ Ronald E. Robison
                                                     Ronald E. Robison
                                                     Principal Executive Officer



                                       29



                                                                   EXHIBIT 12 B2

                  CERTIFICATION OF PRINCIPAL FINANCIAL OFFICER

                                 CERTIFICATIONS
                                 --------------

I, Francis Smith, certify that:

1.   I have reviewed this report on Form N-CSR of Morgan Stanley California
     Insured Municipal Income Trust;

2.   Based on my knowledge, this report does not contain any untrue statement of
     a material fact or omit to state a material fact necessary to make the
     statements made, in light of the circumstances under which such statements
     were made, not misleading with respect to the period covered by this
     report;

3.   Based on my knowledge, the financial statements and other financial
     information included in this report, fairly present in all material
     respects the financial condition, results of operations, changes in net
     assets, and cash flows (if the financial statements are required to include
     a statement of cash flows) of the registrant as of, and for, the periods
     presented in this report;

4.   The registrant's other certifying officers and I are responsible for
     establishing and maintaining disclosure controls and procedures (as defined
     in Rule 30a-3(c) under the Investment Company Act of 1940) and internal
     control over financial reporting (as defined in Rule 30a-3(d) under the
     Investment Company Act of 1940) for the registrant and have:

a)   designed such disclosure controls and procedures, or caused such disclosure
     controls and procedures to be designed under our supervision, to ensure
     that material information relating to the registrant, including its
     consolidated subsidiaries, is made known to us by others within those
     entities, particularly during the period in which this report is being
     prepared;

b)   designed such internal control over financial reporting, or caused such
     internal control over financial reporting to be designed under our
     supervision, to provide reasonable assurance regarding the reliability of
     financial reporting and the preparation of financial statements for
     external purposes in accordance with generally accepted accounting
     principles;

c)   evaluated the effectiveness of the registrant's disclosure controls and
     procedures and presented in this report our conclusions about the
     effectiveness of the disclosure controls and procedures, as of a date
     within 90 days prior to the filing date of this report based on such
     evaluation; and

d)   disclosed in this report any change in the registrant's internal control
     over financial reporting that occurred during the registrant's most recent
     fiscal half-year (the registrant's second fiscal half-year in the case of
     an annual report) that has materially affected, or is reasonably likely to
     materially affect, the registrant's internal control over financial
     reporting; and

5.   The registrant's other certifying officer(s) and I have disclosed to the
     registrant's auditors and the audit committee of the registrant's board of
     directors (or persons performing the equivalent functions):



                                       30


a)   all significant deficiencies and material weaknesses in the design or
     operation of internal control over financial reporting which are reasonably
     likely to adversely affect the registrant's ability to record, process,
     summarize, and report financial information; and

b)   any fraud, whether or not material, that involves management or other
     employees who have a significant role in the registrant's internal controls
     over financial reporting.

Date: December 19, 2005

                                                     /s/ Francis Smith
                                                     Francis Smith
                                                     Principal Financial Officer




                                       31




                            SECTION 906 CERTIFICATION

                Certification Pursuant to 18 U.S.C. Section 1350,
                             As Adopted Pursuant to
                  Section 906 of the Sarbanes-Oxley Act of 2002

Morgan Stanley California Insured Municipal Income Trust

     In connection with the Report on Form N-CSR (the "Report") of the
above-named issuer for the period ended October 31, 2005 that is accompanied by
this certification, the undersigned hereby certifies that:

1.   The Report fully complies with the requirements of Section 13(a) or 15(d)
     of the Securities Exchange Act of 1934; and

2.   The information contained in the Report fairly presents, in all material
     respects, the financial condition and results of operations of the Issuer.



Date: December 19, 2005                          /s/ Ronald E. Robison
                                                 ---------------------
                                                 Ronald E. Robison
                                                 Principal Executive Officer


A signed original of this written statement required by Section 906 has been
provided to Morgan Stanley California Insured Municipal Income Trust and will be
retained by Morgan Stanley California Insured Municipal Income Trust and
furnished to the Securities and Exchange Commission or its staff upon request.


                                       32




                            SECTION 906 CERTIFICATION

                Certification Pursuant to 18 U.S.C. Section 1350,
                             As Adopted Pursuant to
                  Section 906 of the Sarbanes-Oxley Act of 2002

Morgan Stanley California Insured Municipal Income Trust

     In connection with the Report on Form N-CSR (the "Report") of the
above-named issuer for the period ended October 31, 2005 that is accompanied by
this certification, the undersigned hereby certifies that:

1.   The Report fully complies with the requirements of Section 13(a) or 15(d)
     of the Securities Exchange Act of 1934; and

2.   The information contained in the Report fairly presents, in all material
     respects, the financial condition and results of operations of the Issuer.



Date: December 19, 2005                  /s/ Francis Smith
                                         -----------------
                                         Francis Smith
                                         Principal Financial Officer


A signed original of this written statement required by Section 906 has been
provided to Morgan Stanley California Insured Municipal Income Trust and will be
retained by Morgan Stanley California Insured Municipal Income Trust and
furnished to the Securities and Exchange Commission or its staff upon request.




                                       33