UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934* (Amendment No. ___) Bio-Imaging Technologies, Inc. -------------------------------------------------------------------------------- (Name of Issuer) Common Stock, par value $0.00025 per share -------------------------------------------------------------------------------- (Title of Class of Securities) 09056N103 -------------------------------------------------------------------------------- (CUSIP Number) May 8, 2003 -------------------------------------------------------------------------------- (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which this Schedule is filed: [ ] Rule 13d-1(b) [X] Rule 13d-1(c) [ ] Rule 13d-1(d) * The remainder of this cover page shall be filled out for a reporting person's initial filing on this form with respect to the subject class of securities, and for any subsequent amendment containing information which would alter the disclosures provided in a prior cover page. The information required in the remainder of this cover page shall not be deemed to be "filed" for the purpose of Section 18 of the Securities Exchange Act of 1934 ("Act") or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act (however, see the Notes). Person Authorized to Receive Notices and Communications: Jacob D. Smith, Esq. Haynes and Boone, LLP 901 Main Street, Suite 3100 Dallas, Texas 75202 (214) 651-5174 SCHEDULE 13G ------------------- ----------------- CUSIP No. 09056N103 Page 2 of 6 Pages ------------------- ----------------- -------------------------------------------------------------------------------- 1 NAME OF REPORTING PERSON I.R.S. IDENTIFICATION NO. OF ABOVE PERSON (ENTITIES ONLY) The Pinnacle Fund, L.P., a Texas limited partnership 75-2512784 -------------------------------------------------------------------------------- 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (a) [ ] (b) [ ] -------------------------------------------------------------------------------- 3 SEC USE ONLY -------------------------------------------------------------------------------- 4 CITIZENSHIP OR PLACE OR ORGANIZATION Texas -------------------------------------------------------------------------------- 5 SOLE VOTING POWER NUMBER OF SHARES 547,900 BENEFICIALLY --------------------------------------------------------- OWNED BY 6 SHARED VOTING POWER EACH REPORTING 0 PERSON --------------------------------------------------------- WITH 7 SOLE DISPOSITIVE POWER 547,900 --------------------------------------------------------- 8 SHARED DISPOSITIVE POWER 0 -------------------------------------------------------------------------------- 9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 547,900 -------------------------------------------------------------------------------- 10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES [ ] -------------------------------------------------------------------------------- 11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) 6.3% -------------------------------------------------------------------------------- 12 TYPE OF REPORTING PERSON PN -------------------------------------------------------------------------------- ------------------- ----------------- CUSIP No. 09056N103 Page 3 of 6 Pages ------------------- ----------------- Item 1(a) Name of Issuer: Bio-Imaging Technologies, Inc. Item 1(b) Address of Issuer's Principal Executive Offices: 826 Newtown-Yardley Road Newtown, Pennsylvania 18940-1721 Item 2(a) Name of Person Filing: The Pinnacle Fund, L.P. Item 2(b) Address of Principal Business Office: 4965 Preston Park Blvd. Suite 240 Plano, Texas 75093 Item 2(c) Citizenship: Texas Item 2(d) Title of Class of Securities: Common Stock, $0.00025 per share Item 2(e) CUSIP No: 09056N103 ------------------- ----------------- CUSIP No. 09056N103 Page 4 of 6 Pages ------------------- ----------------- Item 3 Status of Person Filing: (a) [ ] Broker or dealer registered under section 15 of the Act (15 U.S.C. 78o); (b) [ ] Bank as defined in section 3(a)(6) of the Act (15 U.S.C. 78c); (c) [ ] Insurance company as defined in section 3(a)(19) of the Act (15 U.S.C. 78c); (d) [ ] Investment company registered under section 8 of the Investment Company Act of 1940 (15 U.S.C. 80a-8); (e) [ ] An investment adviser in accordance with Section 240.13d-1(b)(1)(ii)(E); (f) [ ] An employee benefit plan or endowment fund in accordance with Section 240.13d-1(b)(1)(ii)(F); (g) [ ] A parent holding company or control person in accordance with Section 240.13d-1(b)(1)(ii)(G); (h) [ ] A savings association as defined in Section 3(b) of the Federal Deposit Insurance Act (12 U.S.C. 1813); (i) [ ] A church plan that is excluded from the definition of an investment company under section 3(c)(14) of the Investment Company Act of 1940 (15 U.S.C. 80a-3); (j) [ ] Group, in accordance with Section 240.13d-1(b)(1)(ii)(J). Item 4 Ownership: (a) This statement is filed on behalf of The Pinnacle Fund, L.P. As of May 15, 2003, The Pinnacle Fund, L.P. was the beneficial owner of 547,900 shares of common stock of Bio-Imaging Technologies, Inc. (b) Percent of Class: 6.3%. (c) Number of shares as to which each person has: (i) sole power to vote or to direct the vote: 547,900 (ii) shared power to vote or to direct the vote: 0 (iii) sole power to dispose or to direct the disposition of: 547,900 (iv) shared power to dispose or to direct the disposition of: 0 ------------------- ----------------- CUSIP No. 09056N103 Page 5 of 6 Pages ------------------- ----------------- Item 5 Ownership of 5% or Less of a Class: Not applicable. Item 6 Ownership of More than 5% on Behalf of Another Person: Not applicable. Item 7 Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on By the Parent Holding Company or Control Person: Not applicable. Item 8 Identification and Classification of Members of the Group: Not applicable. Item 9 Notice of Dissolution of Group: Not applicable. Item 10 Certification: By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect. ------------------- ----------------- CUSIP No. 09056N103 Page 6 of 6 Pages ------------------- ----------------- SIGNATURE After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct. Date: May 16, 2003 THE PINNACLE FUND, L.P. By: Pinnacle Advisors, L.P., its general partner By: /s/ Barry M. Kitt --------------------------------------------- Barry M. Kitt, its general partner