TV Series | TV-14 | | Action, Crime, Drama
Follows District 21 of the Chicago Police Department, which is made up of two distinctly different groups: the uniformed cops and the Intelligence Unit.
An I.R. Number is a Individual Record Number assigned by the Chicago Police to an individual upon his or her arrest. This number is used in any subsequent arrests of the same individual. It may be possible for two names to be listed for the same I.R. number if both names refer to the same person.
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