The Suffolk County Police Department (SCPD) provides police services to 5 of the 10 Towns in Suffolk County, New York. It is one of the largest police agencies in the United States, with approximately 2500 sworn officers.

Suffolk County is the easternmost county in the U.S. state of New York. It is bordered to its west by Nassau County, to its east by Gardiners Bay and the Atlantic Ocean, to its north by Long Island Sound, and to its south by Great South Bay. The county is part of the Long Island region of the state, of which it comprises the eastern two-thirds.