U.S. Department of Justice
The primary mission of the U.S. Department of Justice is to enforce the law and defend the interests of the United States according to the law; to ensure public safety against threats foreign and domestic; to provide federal leadership in preventing and controlling crime; to seek just punishment for those guilty of unlawful behavior; and to ensure fair and impartial administration of justice for all Americans.
The primary mission of the Executive Office for Immigration Review (EOIR) is to adjudicate immigration cases by fairly, expeditiously, and uniformly interpreting and administering the Nation's immigration laws. Under delegated authority from the Attorney General, EOIR conducts immigration court proceedings, appellate reviews, and administrative hearings.
The Office of Special Counsel for Immigration-Related Unfair Employment Practices (OSC) enforces the anti-discrimination provision (§ 274B) of the Immigration and Nationality Act (INA), 8 U.S.C. § 1324b.