The Office of Inspector General (OIG) is an independent office dedicated to ensuring honesty and integrity in City government by rooting out corruption, fraud, other misconduct, and waste.
Department Main Office
Office of Inspector General
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Phone: 773.478.7799
Toll Free: OIG Tip Line - 866.448.4754
Fax: 773.478.3949 -
740 N Sedgwick Street
Suite 200
Chicago, IL 60654
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