EX-23 4 exhibit23.txt EXHIBIT 23.2 EXHIBIT 23.2 INDEPENDENT AUDITORS' CONSENT We consent to the incorporation by reference in this Amendment No. 1 to Registration Statement No. 333-75424 of IGEN International, Inc. on Form S-3 of our report dated May 15, 2001 (June 20, 2001 as to Note 4 of Notes to Consolidated Financial Statements) appearing in the Annual Report on Form 10-K of IGEN International, Inc. for the year ended March 31, 2001 and to the reference to us under the heading "Experts" in the Prospectus, which is part of this Registration Statement. /s/ Deloitte & Touche LLP McLean, Virginia January 2, 2002