The mission of the OIIG is to detect, deter and prevent corruption, fraud, waste, mismanagement, unlawful political discrimination and misconduct in the operation of Cook County government with integrity, independence, professionalism and respect for both the rule of law and the people we serve. The OIIG conducts investigations and issues findings and recommendations to Cook County government officials. The OIIG also investigates potential criminal violations involving the conduct of Cook County employees acting in their official capacities and refers such matters for prosecution. Because the OIIG is a fact-finding agency, it cannot dictate a legal outcome.
The OIIG also serves as a liaison between the County and outside law enforcement authorities and prosecutorial agencies when cases are referred.
The OIIG's jurisdiction includes employees, elected and appointed officials in the performance of their official duties, as well as contractors and subcontractors doing or seeking to do business with Cook County government.