Ill. Admin. Code tit. 2, § 2050.20
a) Any interested person should submit a request for information in writing. The request should include a complete description of the information requested, the reason for the request and, when applicable, timing requirements. Requests should be directed to:
Executive Director
Department of State Police Merit Board
531 Sangamon Avenue East
Springfield, Illinois 62702
(Source: Amended at 36 Ill. Reg. 4414, effective March 12, 2012)