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Intelligence Unit is an elite unit of the Chicago Police Department that investigates and combats the city's major offenses, including organized crime, drug trafficking, and high-profile murders.
Known members
- Sergeant Hank Voight Commanding Officer of the Intelligence Unit
- Detective Jay Halstead Senior Detective
- Detective Hailey Upton Junior Detective
- Officer Adam Ruzek Intelligence Unit Officer
- Officer Kim Burgess Intelligence Unit Officer
- Officer Kevin Atwater Intelligence Unit Officer
- Officer Andre Cooper Intelligence Unit Officer
Former members
- Detective Julie "Jules" Willhite Junior Detective (deceased)
- Detective Sheldon Jin Intelligence Unit tech expert (deceased)
- Detective Mia Sumner Junior Detective (transferred)
- Detective Kenny Rixton Junior Detective (transferred)
- Detective Erin Lindsay Junior Detective (resigned, joined FBI New York)
- Detective Alvin Olinsky Senior Detective (deceased)
- Detective Antonio Dawson Senior Detective (resigned)
- Officer Vanessa Rojas Intelligence Unit Officer (transferred)
- Craig "Mouse" Gurwitch Intelligence Unit tech expert (resigned)
- Nadia Decotis Administrative assistant (deceased)