When horse racing parimutuel wagering was legalized (1927), the licensing was handled by the Department of Agriculture which was authorized to specify race times and locations; and to employ inspectors to ensure compliance with parimutuel system rules. The Illinois Racing Commission (1933-1941), composed of three members appointed by the Governor, was given these racing and wagering responsibilities. Additionally, the Commission was authorized to set rules, regulations, and racing conditions for races; to conduct hearings, investigate violations; impose fines for infractions and to employ a full-time secretary and necessary staff. Its name was changed to Illinois Racing Board in 1941.
From the description of Board proceedings transcripts, 1969-1979. (Illinois State Archive). WorldCat record id: 37228315
From the description of Investigative and hearing case files, 1934-1972. (Illinois State Archive). WorldCat record id: 37228245