the Chicago Police Department

The Chicago Police Department is the law enforcement agency of the U.S. city of Chicago, Illinois, under the jurisdiction of the City Council.

Law enforcement is any system by which some members of society act in an organized manner to enforce the law by discovering, deterring, rehabilitating, or punishing people who violate the rules and norms governing that society.

Illinois is a state in the midwestern region of the United States, achieving statehood in 1818.

Chicago Police Department: Unmarked Car Responding by Arvell Dorsey Jr.

It is the second largest non-federal law enforcement agency in the United States behind the New York City Police Department.

The New York City Police Department, officially the City of New York Police Department, is the largest municipal police force in the United States.

Chicago Police Department: The Family by ChicagoCopMedia

It has about 12,244 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.