<Tr> <Td_colspan="2"> usmarshals.gov </Td> </Tr> <P> The United States Marshals Service (USMS) is a federal law - enforcement agency within the U.S. Department of Justice (28 U.S.C. § 561). It is the oldest American federal law - enforcement agency and was created by the Judiciary Act of 1789 during the presidency of George Washington as the Office of the United States Marshal . The USMS as it stands today was established in 1969 to provide guidance and assistance to Marshals throughout the federal judicial districts . USMS is an agency of the United States executive branch reporting to the United States Attorney - General but serves as the enforcement arm of the United States federal courts to ensure the effective operation of the judiciary and integrity of the Constitution . </P> <P> The Marshals Service is the primary agency for fugitive operations, the protection of officers of the Federal Judiciary, the management of criminal assets, the operation of the United States Federal Witness Protection Program and the Justice Prisoner and Alien Transportation System, and execution of federal arrest warrants . Throughout its history, the Marshals have also provided unique security and enforcement services including protecting African - American students enrolling in the South during the civil rights movement, escort security for United States Air Force LGM - 30 Minuteman missile convoys, law enforcement for the United States Antarctic Program, and protection of the Strategic National Stockpile . </P> <P> The office of United States Marshal was created by the First Congress . President George Washington signed the Judiciary Act into law on September 24, 1789 . The Act provided that a United States Marshal's primary function was to execute all lawful warrants issued to him under the authority of the United States . The law defined marshals as officers of the courts charged with assisting Federal courts in their law - enforcement functions: </P>

When do us marshals get involved in a case
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