EXHIBIT
31




Certification
Pursuant to Section 302 of
the Sarbanes-Oxley Act of 2002





I,
Jacques Tizabi, certify that:





1. I have
reviewed this quarterly report on Form 10-Q of Universal Detection
Technology;





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. The small
business issuer’s other certifying officer(s) and I are 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
small business issuer 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 small business issuer, 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 small business issuer’s disclosure controls
and procedures and presented in this 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 small business issuer’s internal
control over financial reporting that occurred during the small business
issuer’s most recent fiscal quarter that has materially affected, or is
reasonably likely to materially affect, the small business issuer’s internal
control over financial reporting; and





5. The small
business issuer’s other certifying officer(s) and I have disclosed, based on our
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.







Dated: May 24,
      2010
            /s/ Jacques
      TizabiJacques
      Tizabi
              Principal
      Executive Officer and Acting Principal Financial Officer and
              Principal
      Accounting Officer