The United States Marshals Service (USMS) is a federal law enforcement agency within the U.S. Department of Justice. The USMS is responsible for providing security for federal courts, transporting federal prisoners, and apprehending fugitives. The agency also plays a critical role in protecting witnesses and managing assets seized from criminal enterprises. The USMS has a long and storied history, dating back to the late 18th century. Today, the agency employs over 5,000 people and has a presence in all 50 states.