EXHIBIT 31.1

                            CERTIFICATION PURSUANT TO
                  SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

I, Thomas N. Konatich, certify that:

      1.    I have reviewed this annual report on Form 10-KSB/A of SIGA
            Technologies, Inc.;

      2.    Based on my knowledge, this annual 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 quarterly report;

      3.    Based on my knowledge, the financial statements, and other financial
            information included in this annual report, fairly present in all
            material respects the financial condition, results of operations and
            cash flows of the registrant as of, and for, the periods presented
            in this annual report;

      4.    I am responsible for establishing and maintaining disclosure
            controls and procedures (as defined in Exchange Act Rules 13a-15(e)
            and 15d-15(e)) and internal control over financial reporting (as
            defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) 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 me by others within those entities, particularly
                  during the period in which this annual report is being
                  prepared;

            (b)   Designed such internal control over financial reporting, or
                  caused such control over financial reporting to be designed
                  under my supervision, to provide the assurance regarding the
                  reliability of financial reporting and preparation of
                  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 annual report
                  our conclusions about the effectiveness of the disclosure
                  controls and procedures, as of the end of the period covered
                  by 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 fourth fiscal quarter that has materially
                  affected, or is reasonably likely to materially affect, the
                  registrant's internal control over financial reporting; and

      5.    I have disclosed, based on my most recent evaluation of internal
            control over financial reporting, to the registrant's auditors and
            the audit committee of 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.


Date:  September 5, 2003
                                           By /s/ Thomas N. Konatich
                                              ----------------------------------
                                              Thomas N. Konatich
                                              Acting Chief Executive Officer and
                                              Chief Financial Officer