Report of Independent Registered Public Accounting
Firm

To the Trustees of Deutsche Investment Trust and
Shareholders of Deutsche Core Equity Fund:
In planning and performing our audit of the financial
statements of Deutsche Core Equity Fund (formerly
DWS Core Equity Fund) (the "Fund"), as of and for the
year ended September 30, 2014, in accordance with the
standards of the Public Company Accounting Oversight
Board (United States), we considered the Fund's
internal control over financial reporting, including
control activities for safeguarding securities, as a basis
for designing our auditing procedures for the purpose of
expressing our opinion on the financial statements and
to comply with the requirements of Form N-SAR, but
not for the purpose of expressing an opinion on the
effectiveness of the Fund's internal control over
financial reporting.  Accordingly, we do not express an
opinion on the effectiveness of the Fund's internal
control over financial reporting.
The management of the Fund is responsible for
establishing and maintaining effective internal control
over financial reporting.  In fulfilling this responsibility,
estimates and judgments by management are required
to assess the expected benefits and related costs of
controls.  A fund's internal control over financial
reporting is a process designed 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.  A fund's internal control over
financial reporting includes those policies and
procedures that (1) pertain to the maintenance of
records that, in reasonable detail, accurately and fairly
reflect the transactions and dispositions of the assets of
the fund; (2) provide reasonable assurance that
transactions are recorded as necessary to permit
preparation of financial statements in accordance with
generally accepted accounting principles, and that
receipts and expenditures of the fund are being made
only in accordance with authorizations of management
and directors of the fund; and (3)  provide reasonable
assurance regarding prevention or timely detection of
unauthorized acquisition, use or disposition of a fund's
assets that could have a material effect on the financial
statements.
Because of its inherent limitations, internal control over
financial reporting may not prevent or detect
misstatements. Also, projections of any evaluation of
effectiveness to future periods are subject to the risk
that controls may become inadequate because of
changes in conditions, or that the degree of compliance
with the policies or procedures may deteriorate.
A deficiency in internal control over financial reporting
exists when the design or operation of a control does
not allow management or employees, in the normal
course of performing their assigned functions, to
prevent or detect misstatements on a timely basis.  A
material weakness is a deficiency, or a combination of
deficiencies, in internal control over financial reporting,
such that there is a reasonable possibility that a
material misstatement of the Fund's annual or interim
financial statements will not be prevented or detected
on a timely basis.
Our consideration of the Fund's internal control over
financial reporting was for the limited purpose
described in the first paragraph and would not
necessarily disclose all deficiencies in internal control
over financial reporting that might be material
weaknesses under standards established by the Public
Company Accounting Oversight Board (United States).
However, we noted no deficiencies in the Fund's
internal control over financial reporting and its
operation, including controls over safeguarding
securities, which we consider to be material
weaknesses as defined above as of September 30, 2014.
This report is intended solely for the information and
use of the Trustees, management, and the Securities
and Exchange Commission and is not intended to be
and should not be used by anyone other than these
specified parties.

PricewaterhouseCoopers LLP
Boston, Massachusetts
November 21, 2014




Report of Independent Registered Public Accounting
Firm

To the Trustees of Deutsche Investment Trust and
Shareholders of Deutsche Capital Growth Fund:
In planning and performing our audit of the financial
statements of Deutsche Capital Growth Fund (formerly
DWS Capital Growth Fund) (the "Fund"), as of and for
the year ended September 30, 2014, in accordance with
the standards of the Public Company Accounting
Oversight Board (United States), we considered the
Fund's internal control over financial reporting,
including control activities for safeguarding securities,
as a basis for designing our auditing procedures for the
purpose of expressing our opinion on the financial
statements and to comply with the requirements of
Form N-SAR, but not for the purpose of expressing an
opinion on the effectiveness of the Fund's internal
control over financial reporting.  Accordingly, we do not
express an opinion on the effectiveness of the Fund's
internal control over financial reporting.
The management of the Fund is responsible for
establishing and maintaining effective internal control
over financial reporting.  In fulfilling this responsibility,
estimates and judgments by management are required
to assess the expected benefits and related costs of
controls.  A fund's internal control over financial
reporting is a process designed 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.  A fund's internal control over
financial reporting includes those policies and
procedures that (1) pertain to the maintenance of
records that, in reasonable detail, accurately and fairly
reflect the transactions and dispositions of the assets of
the fund; (2) provide reasonable assurance that
transactions are recorded as necessary to permit
preparation of financial statements in accordance with
generally accepted accounting principles, and that
receipts and expenditures of the fund are being made
only in accordance with authorizations of management
and directors of the fund; and (3)  provide reasonable
assurance regarding prevention or timely detection of
unauthorized acquisition, use or disposition of a fund's
assets that could have a material effect on the financial
statements.
Because of its inherent limitations, internal control over
financial reporting may not prevent or detect
misstatements. Also, projections of any evaluation of
effectiveness to future periods are subject to the risk
that controls may become inadequate because of
changes in conditions, or that the degree of compliance
with the policies or procedures may deteriorate.
A deficiency in internal control over financial reporting
exists when the design or operation of a control does
not allow management or employees, in the normal
course of performing their assigned functions, to
prevent or detect misstatements on a timely basis.  A
material weakness is a deficiency, or a combination of
deficiencies, in internal control over financial reporting,
such that there is a reasonable possibility that a
material misstatement of the Fund's annual or interim
financial statements will not be prevented or detected
on a timely basis.
Our consideration of the Fund's internal control over
financial reporting was for the limited purpose
described in the first paragraph and would not
necessarily disclose all deficiencies in internal control
over financial reporting that might be material
weaknesses under standards established by the Public
Company Accounting Oversight Board (United States).
However, we noted no deficiencies in the Fund's
internal control over financial reporting and its
operation, including controls over safeguarding
securities, which we consider to be material
weaknesses as defined above as of September 30, 2014.
This report is intended solely for the information and
use of the Trustees, management, and the Securities
and Exchange Commission and is not intended to be
and should not be used by anyone other than these
specified parties.

PricewaterhouseCoopers LLP
Boston, Massachusetts
November 21, 2014





Report of Independent Registered Public
Accounting Firm

To the Trustees of Deutsche Investment Trust and
Shareholders of Deutsche Mid Cap Growth Fund:
In planning and performing our audit of the financial
statements of Deutsche Mid Cap Growth Fund (formerly
DWS Mid Cap Growth Fund) (the "Fund"), as of and for
the year ended September 30, 2014, in accordance with
the standards of the Public Company Accounting
Oversight Board (United States), we considered the Fund's
internal control over financial reporting, including control
activities for safeguarding securities, as a basis for
designing our auditing procedures for the purpose of
expressing our opinion on the financial statements and to
comply with the requirements of Form N-SAR, but not for
the purpose of expressing an opinion on the effectiveness
of the Fund's internal control over financial reporting.
Accordingly, we do not express an opinion on the
effectiveness of the Fund's internal control over financial
reporting.
The management of the Fund is responsible for
establishing and maintaining effective internal control
over financial reporting.  In fulfilling this responsibility,
estimates and judgments by management are required to
assess the expected benefits and related costs of controls.
A fund's internal control over financial reporting is a
process designed 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.  A fund's internal control over financial
reporting includes those policies and procedures that (1)
pertain to the maintenance of records that, in reasonable
detail, accurately and fairly reflect the transactions and
dispositions of the assets of the fund; (2) provide
reasonable assurance that transactions are recorded as
necessary to permit preparation of financial statements in
accordance with generally accepted accounting principles,
and that receipts and expenditures of the fund are being
made only in accordance with authorizations of
management and directors of the fund; and (3)  provide
reasonable assurance regarding prevention or timely
detection of unauthorized acquisition, use or disposition
of a fund's assets that could have a material effect on the
financial statements.
Because of its inherent limitations, internal control over
financial reporting may not prevent or detect
misstatements. Also, projections of any evaluation of
effectiveness to future periods are subject to the risk that
controls may become inadequate because of changes in
conditions, or that the degree of compliance with the
policies or procedures may deteriorate.
A deficiency in internal control over financial reporting
exists when the design or operation of a control does not
allow management or employees, in the normal course of
performing their assigned functions, to prevent or detect
misstatements on a timely basis.  A material weakness is a
deficiency, or a combination of deficiencies, in internal
control over financial reporting, such that there is a
reasonable possibility that a material misstatement of the
Fund's annual or interim financial statements will not be
prevented or detected on a timely basis.
Our consideration of the Fund's internal control over
financial reporting was for the limited purpose described
in the first paragraph and would not necessarily disclose
all deficiencies in internal control over financial reporting
that might be material weaknesses under standards
established by the Public Company Accounting Oversight
Board (United States).  However, we noted no deficiencies
in the Fund's internal control over financial reporting and
its operation, including controls over safeguarding
securities, which we consider to be material weaknesses as
defined above as of September 30, 2014.
This report is intended solely for the information and use
of the Trustees, management, and the Securities and
Exchange Commission and is not intended to be and
should not be used by anyone other than these specified
parties.

PricewaterhouseCoopers LLP
Boston, Massachusetts
November 21, 2014





Report of Independent Registered Public Accounting
Firm

To the Trustees of Deutsche Investment Trust and the
Shareholders of Deutsche Small Cap Core Fund:
In planning and performing our audit of the financial
statements of Deutsche Small Cap Core Fund (formerly
DWS Small Cap Core Fund) (the "Fund"), as of and for
the year ended September 30, 2014, in accordance with
the standards of the Public Company Accounting
Oversight Board (United States), we considered the
Fund's internal control over financial reporting,
including control activities for safeguarding securities,
as a basis for designing our auditing procedures for the
purpose of expressing our opinion on the financial
statements and to comply with the requirements of
Form N-SAR, but not for the purpose of expressing an
opinion on the effectiveness of the Fund's internal
control over financial reporting.  Accordingly, we do not
express an opinion on the effectiveness of the Fund's
internal control over financial reporting.
The management of the Fund is responsible for
establishing and maintaining effective internal control
over financial reporting.  In fulfilling this responsibility,
estimates and judgments by management are required
to assess the expected benefits and related costs of
controls.  A fund's internal control over financial
reporting is a process designed 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.  A fund's internal control over
financial reporting includes those policies and
procedures that (1) pertain to the maintenance of
records that, in reasonable detail, accurately and fairly
reflect the transactions and dispositions of the assets of
the fund; (2) provide reasonable assurance that
transactions are recorded as necessary to permit
preparation of financial statements in accordance with
generally accepted accounting principles, and that
receipts and expenditures of the fund are being made
only in accordance with authorizations of management
and directors of the fund; and (3)  provide reasonable
assurance regarding prevention or timely detection of
unauthorized acquisition, use or disposition of a fund's
assets that could have a material effect on the financial
statements.
Because of its inherent limitations, internal control over
financial reporting may not prevent or detect
misstatements. Also, projections of any evaluation of
effectiveness to future periods are subject to the risk
that controls may become inadequate because of
changes in conditions, or that the degree of compliance
with the policies or procedures may deteriorate.
A deficiency in internal control over financial reporting
exists when the design or operation of a control does
not allow management or employees, in the normal
course of performing their assigned functions, to
prevent or detect misstatements on a timely basis.  A
material weakness is a deficiency, or a combination of
deficiencies, in internal control over financial reporting,
such that there is a reasonable possibility that a
material misstatement of the Fund's annual or interim
financial statements will not be prevented or detected
on a timely basis.
Our consideration of the Fund's internal control over
financial reporting was for the limited purpose
described in the first paragraph and would not
necessarily disclose all deficiencies in internal control
over financial reporting that might be material
weaknesses under standards established by the Public
Company Accounting Oversight Board (United States).
However, we noted no deficiencies in the Fund's
internal control over financial reporting and its
operation, including controls over safeguarding
securities, which we consider to be material
weaknesses as defined above as of September 30, 2014.
This report is intended solely for the information and
use of the Trustees, management, and the Securities
and Exchange Commission and is not intended to be
and should not be used by anyone other than these
specified parties.

PricewaterhouseCoopers LLP
Boston, Massachusetts
November 21, 2014






Report of Independent Registered Public Accounting
Firm

To the Trustees of Deutsche Investment Trust and
Shareholders of Deutsche Small Cap Growth Fund:
In planning and performing our audit of the financial
statements of Deutsche Small Cap Growth Fund
(formerly DWS Small Cap Growth Fund) (the "Fund"), as
of and for the year ended September 30, 2014, in
accordance with the standards of the Public Company
Accounting Oversight Board (United States), we
considered the Fund's internal control over financial
reporting, including control activities for safeguarding
securities, as a basis for designing our auditing
procedures for the purpose of expressing our opinion
on the financial statements and to comply with the
requirements of Form N-SAR, but not for the purpose of
expressing an opinion on the effectiveness of the Fund's
internal control over financial reporting.  Accordingly,
we do not express an opinion on the effectiveness of
the Fund's internal control over financial reporting.
The management of the Fund is responsible for
establishing and maintaining effective internal control
over financial reporting.  In fulfilling this responsibility,
estimates and judgments by management are required
to assess the expected benefits and related costs of
controls.  A fund's internal control over financial
reporting is a process designed 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.  A fund's internal control over
financial reporting includes those policies and
procedures that (1) pertain to the maintenance of
records that, in reasonable detail, accurately and fairly
reflect the transactions and dispositions of the assets of
the fund; (2) provide reasonable assurance that
transactions are recorded as necessary to permit
preparation of financial statements in accordance with
generally accepted accounting principles, and that
receipts and expenditures of the fund are being made
only in accordance with authorizations of management
and directors of the fund; and (3)  provide reasonable
assurance regarding prevention or timely detection of
unauthorized acquisition, use or disposition of a fund's
assets that could have a material effect on the financial
statements.
Because of its inherent limitations, internal control over
financial reporting may not prevent or detect
misstatements. Also, projections of any evaluation of
effectiveness to future periods are subject to the risk
that controls may become inadequate because of
changes in conditions, or that the degree of compliance
with the policies or procedures may deteriorate.
A deficiency in internal control over financial reporting
exists when the design or operation of a control does
not allow management or employees, in the normal
course of performing their assigned functions, to
prevent or detect misstatements on a timely basis.  A
material weakness is a deficiency, or a combination of
deficiencies, in internal control over financial reporting,
such that there is a reasonable possibility that a
material misstatement of the Fund's annual or interim
financial statements will not be prevented or detected
on a timely basis.
Our consideration of the Fund's internal control over
financial reporting was for the limited purpose
described in the first paragraph and would not
necessarily disclose all deficiencies in internal control
over financial reporting that might be material
weaknesses under standards established by the Public
Company Accounting Oversight Board (United States).
However, we noted no deficiencies in the Fund's
internal control over financial reporting and its
operation, including controls over safeguarding
securities, which we consider to be material
weaknesses as defined above as of September 30, 2014.
This report is intended solely for the information and
use of the Trustees, management, and the Securities
and Exchange Commission and is not intended to be
and should not be used by anyone other than these
specified parties.

PricewaterhouseCoopers LLP
Boston, Massachusetts
November 21, 2014