Chicago Police Department

The Chicago Police Department (CPD), is the principal law enforcement agency of Chicago, Illinois, in the United States, under the jurisdiction of the Mayor of Chicago. It is the second largest non-federal law enforcement agency in the United States behind the New York City Police Department. It has about 12,244 sworn officers and over 1,925 other employees. Tracing its roots back to 1835, the Chicago Police Department is one of the oldest modern police forces in the world.