U.S. Immigration and Customs Enforcement

U.S. Immigration and Customs Enforcement (ICE) is the largest and primary law enforcement agency of the United States Department of Homeland Security (DHS). Its duty is to protect the nation's border. Its main office is located in Washington, D.C..
ICE is run by an assistant secretary, who is given the job by the President of the United States, confirmed by the Senate, and reports directly to the Secretary of Homeland Security.