Exhibit 31.1

                                  CERTIFICATION

I, C. A. Rundell, Jr., certify that:

1.   I have reviewed this quarterly report on Form 10-QSB of Integrated Security
Systems, Inc.;

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 and cash flows of the small business
issuer as of, and for, the periods presented in this 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)) for the
small business issuer and have:

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

         (b)    Evaluated  the  effectiveness  of the  small  business  issuer's
                disclosure  controls and procedures and presented in this report
                my  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

         (c)    Disclosed  in this  report  any  change  in the  small  business
                issuer's internal control over financial reporting that occurred
                during the small  business  issuer's most recent fiscal  quarter
                (the small business  issuer's  fourth fiscal quarter in the case
                of  an  annual  report)  that  has  materially  affected,  or is
                reasonably  likely to  materially  affect,  the  small  business
                issuer's internal control over financial reporting;

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

Date:  May 11, 2005                            /s/ C. A. RUNDELL, JR.
                                               ---------------------------------
                                               C. A. Rundell, Jr.,
                                               Chief Executive Officer and
                                               Principal Executive and Financial
                                               Officer