FORM 4 -------------------------- OMB APPROVAL -------------------------- OMB Number.......3235-0287 Expires: December 31, 2001 Estimated average burden hours per response.....0.5 -------------------------- UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(f) of the Investment Company Actof 1940 [_] Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instructions 1(b). -------------------------------------------------------------------------------- 1. Name and Address of Reporting Person Paciotti, Nazzareno c/o Kroll Inc. 900 Third Avenue New York, NY 10022 -------------------------------------------------------------------------------- 2. Issuer Name and Ticker or Trading Symbol Kroll Inc. ("KROL") -------------------------------------------------------------------------------- 3. IRS or Social Security Number of Reporting Person (Voluntary) -------------------------------------------------------------------------------- 4. Statement for Month/Year November 2001 -------------------------------------------------------------------------------- 5. If Amendment, Date of Original (Month/Year) -------------------------------------------------------------------------------- 6. Relationship of Reporting Person(s) to Issuer (Check all applicable) [_] Director [_] 10% Owner [X] Officer (give title below) [_] Other (specify below) Chief Financial Officer -------------------------------------------------------------------------------- 7. Individual or Joint/Group Filing (Check Applicable Line) [X] Form filed by One Reporting Person [_] Form filed by More than One Reporting Person

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly. * If the form is filed by more than one reporting person, see Instruction 5(b)(v). (Over) SEC 1474 (7-96) Page 1 of 2

Explanation of Responses: /s/ Nazzareno Paciotti -------------------------------- ** Signature of Reporting Person December 10, 2001 ------------------------ Date ** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a). Note: File three copies of this Form, one of which must be manually signed. If space provided is insufficient, see Instruction 6 for procedure. Potential persons who are to respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number. SEC 1474 (7-96) Page 2 of 2

KROLL INC 4