LIMITED POWER OF ATTORNEY FOR
SECTION 16 REPORTING OBLIGATIONS

Know all by these presents, that the undersigned
hereby makes, constitutes and appoints each of Richard
M. Shepperd, Michael R. Cox, and Lina L. Reeves-
Kerner, each acting individually, as the undersigned's
true and lawful attorney-in-fact, with full power and
authority as hereinafter described on behalf of and in
the name, place and stead of the undersigned to:

(1)	prepare, execute, acknowledge, deliver and file
Forms 3, 4, and 5 (including any amendments thereto)
with respect to the securities of Bioanalytical
Systems, Inc., an Indiana corporation (the "Company"),
with the United States Securities and Exchange
Commission, any national securities exchanges and the
Company, as considered necessary or advisable under
Section 16(a) of the Securities Exchange Act of 1934
and the rules and regulations promulgated thereunder,
as amended from time to time (the "Exchange Act");

(2)	seek or obtain, as the undersigned's
representative and on the undersigned's behalf,
information on transactions in the Company's
securities from any third party, including brokers,
employee benefit plan administrators and trustees, and
the undersigned hereby authorizes any such person to
release any such information to each of the
undersigned's attorneys-in-fact appointed by this
Limited Power of Attorney and approves and ratifies
any such release of information; and

(3)	perform any and all other acts which in the
discretion of such attorney-in-fact are necessary or
desirable for and on behalf of the undersigned in
connection with the foregoing.

The undersigned acknowledges that:

(1)	this Limited Power of Attorney authorizes, but
does not require, each such attorney-in-fact to act in
their discretion on information provided to such
attorney-in-fact without independent verification of
such information;

(2)	any documents prepared and/or executed by either
such attorney-in-fact on behalf of the undersigned
pursuant to this Limited Power of Attorney will be in
such form and will contain such information and
disclosure as such attorney-in-fact, in his or her
discretion, deems necessary or desirable;

(3)	neither the Company nor any of such attorneys-in-
fact assumes (i) any liability for the undersigned's
responsibility to comply with the requirement of the
Exchange Act, (ii) any liability of the undersigned
for any failure to comply with such requirements, or
(iii) any obligation or liability of the undersigned
for profit disgorgement under Section 16(b) of the
Exchange Act; and

(4)	this Limited Power of Attorney does not relieve
the undersigned from responsibility for compliance
with the undersigned's obligations under the Exchange
Act, including without limitation the reporting
requirements under Section 16 of the Exchange Act.


The undersigned hereby gives and grants each of the
foregoing attorneys-in-fact full power and authority
to do and perform all and every act and thing
whatsoever requisite, necessary or appropriate to be
done in and about the foregoing matters as fully to
all intents and purposes as the undersigned might or
could do if present, hereby ratifying all that each
such attorney-in-fact of, for and on behalf of the
undersigned, shall lawfully do or cause to be done by
virtue of this Limited Power of Attorney.

This Limited Power of Attorney shall remain in full
force and effect until revoked by the undersigned in a
signed writing delivered to each such attorney-in-
fact.

IN WITNESS WHEREOF, the undersigned has caused this
Limited Power of Attorney to be executed as of this
27th day of November, 2007.

/s/ Emilio Cordova
Signature

Emilio Cordova
Print Name


STATE OF INDIANA			)
					)
COUNTY OF TIPPECANOE			)

On this 27th day of November, 2007, Emilio Cordova
personally appeared before me, and acknowledged that
s/he executed the foregoing instrument for the
purposes therein contained.

IN WITNESS WHEREOF, I have hereunto set my hand and
official seal.

/s/ Jeri A. Ungersma
Signature


Jeri A. Ungersma
Printed	Notary Public


My Commission Expires:	County of Residence:

July 17, 2008		Tippecanoe
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