District 21 of the Chicago Police Department is made up of two distinctly different groups. There are the uniformed cops who patrol the beat and go head-to-head with the city's street crimes. And there's the Intelligence Unit, the team that combats the city's major offenses - organized crime, drug trafficking, high profile murders and beyond.
Don't **** With My City.
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Did You Know?
COH is short for Confidential Overhear. See more
Referenced in Chicago Fire: Two Ts