Harrison v. CIVIL SERVICE COMM. OF CITY OF CHICAGO , 1 Ill. 2d 137 ( 1953 )
Department of Public Welfare v. Bohleber , 21 Ill. 2d 587 ( 1961 )
People Ex Rel. Newdelman v. Weaver , 50 Ill. 2d 237 ( 1972 )