The Chicago Police Department is currently the police force with primary responsibilities in law enforcement and investigation within the city of Chicago, the largest city in the state of Illinois and the third-largest city in the United States.
- Sergeant Hank Voight
- Detective Erin Lindsay (transferred out)
- Detective Jay Halstead
- Detective Antonio Dawson
- Officer Kim Burgess
- Officer Sean Roman
- Nadia Decotis (administrative assistant; deceased)
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