Jefferies 10-Q 2002 Q3 Quarterly report

Exhibit 99.1

Certification by the Chief Executive Officer and Chief Financial Officer
Pursuant to 18 U.S.C. Section 1350,
as Adopted Pursuant To Section 906 of the Sarbanes-Oxley Act of 2002

     I, Richard B. Handler, Chief Executive Officer, and I, Joseph A. Schenk, Chief Financial Officer, of Jefferies Group, Inc, a Delaware corporation (the “Company”), each hereby certifies, pursuant to 18 U.S.C. section 1350, as adopted pursuant to section 906 of the Sarbanes-Oxley Act of 2002, that to my knowledge:

     (1)    The Company’s periodic report on Form 10-Q for the period ended September 27, 2002 (the “Form 10-Q”) fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

     (2)    The information contained in the Form 10-Q fairly presents, in all material respects, the financial condition and results of operations of the Company.

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CHIEF EXECUTIVE OFFICER	CHIEF FINANCIAL OFFICER
/s/     Richard B. Handler	/s/    Joseph A. Schenk
Richard B. Handler	Joseph A. Schenk
Date:  November 8, 2002	Date:  November 8, 2002