Deutsche Asset Management [LOGO]
                                             A Member of the Deutsche Bank Group

Chief Executive Officer
Form N-CSR Certification under Sarbanes Oxley Act






I, Richard T. Hale, certify that:

1.            I have reviewed this report, filed on behalf of Scudder S&P 500
              Stock Fund, a series of Scudder Investors Trust, on Form N-CSR;

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 officer(s) 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):

               (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 control over financial reporting.

April 30, 2004                                     /s/Richard T. Hale
                                                   Richard T. Hale
                                                   Chief Executive Officer
                                                   Scudder S&P 500 Stock Fund, a
                                                   series of Scudder Investors
                                                   Trust



                                             Deutsche Asset Management [LOGO]
                                             A Member of the Deutsche Bank Group

Chief Financial Officer
Form N-CSR Certification under Sarbanes Oxley Act






I, Charles A. Rizzo, certify that:

1.            I have reviewed this report, filed on behalf of  Scudder S&P 500
              Stock Fund, a series of Scudder Investors Trust, on Form N-CSR;

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 officer(s) 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):

               (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 control over financial reporting.

April 30, 2004                                     /s/Charles A. Rizzo
                                                   Charles A. Rizzo
                                                   Chief Financial Officer
                                                   Scudder S&P 500 Stock Fund, a
                                                   series of Scudder Investors
                                                   Trust