Exhibit 31.1



Certification pursuant to 18 U.S.C. Section 1350 as adopted pursuant to Section 302 and 906 of the Sarbanes-Oxley Act of 2002.



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In connection with the Annual Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 on Form 10-KSB of Non-Invasive Monitoring Systems, Inc. the
Company) for the period ended December 31, 2002, as filed with the Securities and Exchange Commission on the date hereof (the Report), I, Allan F. Brack, Chief Executive Officer of the Company, certify, pursuant to 18 U.S.C.
Sec.1350, as adopted pursuant to Section 302 and 906 of the Sarbanes-Oxley Act of 2002, that:



|1. | I have reviewed this annual report on Form 10-KSB of Non-Invasive Monitoring Systems, Inc.;
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|2. | Based on my knowledge, this yearly 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 yearly report;
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|3. | Based on my knowledge, the financial statements, and other financial information included in this yearly 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 yearly report;
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|4. | I am responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-14 and 15d-14) for the registrant and have:
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| | a) | designed such disclosure controls and procedures 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 yearly report is being prepared;
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| | b) | evaluated the effectiveness of the registrants disclosure controls and procedures as of a date with 90 days prior to the filing date of this yearly report (the
Evaluation Date); and
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| | c) | presented in this yearly report my conclusions about effectiveness of the disclosure controls and procedures based on my evaluation as of the Evaluation Date;
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|5. | I have disclosed, based on my most recent evaluation, to the registrants auditors and the audit committee of registrants board of directors (or persons performing the
equivalent functions):
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| | a) | all significant deficiencies in the design or operation of internal controls which could
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adversely affect the registrants ability to record, process, summarize and report financial data
and have identified for the registrants auditors and material weakness in internal controls; and



| | b) | any fraud, whether or not material, that involves management or other employees who have a significant role in the registrants internal controls; and
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|6. | I have indicated in this yearly report whether there were significant changes in internal controls or in other factors that could significantly affect internal controls subsequent
to the date of my most recent evaluation, including any corrective actions with regard to significant deficiencies and material weaknesses.
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Dated: October 30, 2003



/s/    Allan F. BrackAllan F. Brack, Chief Executive Officer