Department of Justice, DoJ, Justice Department, Justice - the United States federal department responsible for enforcing federal laws (including the enforcement of all civil rights legislation); created in 1870

United States Border Patrol, US Border Patrol - the mobile law enforcement arm of the Immigration and Naturalization Service that detects and prevents illegal entry of aliens into the United States

bureau, federal agency, government agency, agency, office, authority - an administrative unit of government; "the Central Intelligence Agency"; "the Census Bureau"; "Office of Management and Budget"; "Tennessee Valley Authority"