Investigations Unit

The Investigations Unit handled 921 cases in 2017. The Detectives in the unit are assigned cases based on ‘solvability factors’ and the seriousness of the criminal offense. The Investigations Unit is staffed by 1 Sergeant, 4 adult Detectives, 1 juvenile Detective, 1 School Resource Officers and a civilian Crime Analyst. In 2017, the Investigations Unit cleared 126 cases (58 Adult and 68 Juvenile) and made 127 arrests including 43 felony and 63 juvenile arrests. A total of 70 other cases were Exceptionally Cleared without criminal charges being brought. Read about an unsolved murder case. Maybe you can help.

Internet Crimes & Identity Theft

Internet crimes and identity theft are some of the most challenging crimes to investigate. The internet Crime Complaint Center (IC3) is a partnership between the F.B.I., the National White Collar Crime Center and the Bureau of Justice Assistance which receives and investigates complaints of internet crime. Internet crimes complaints can be sent via email to


The Cook County State Attorney’s Office has set up an online information site for the crime of identity theft which can be accessed online.

The Cook County State Attorney’s Office has set up a bad check diversion program for citizens and business that have received checks that did not clear at some point during the financial process. Information on this program can be obtained online.