Which entity is part of the DOJ?

The Federal Bureau of Investigation (FBI) is part of the Department of Justice (DOJ) because its primary function includes enforcing federal laws, conducting investigations, and providing criminal justice services. The DOJ oversees the FBI, which operates under its authority, focusing on criminal investigations and domestic intelligence. This alignment allows the DOJ to coordinate federal law enforcement efforts and ensure the enforcement of federal laws, including civil rights, national security, and various criminal offenses.

In contrast, other entities like the Internal Revenue Service (IRS) mainly focus on tax collection and enforcement, the Central Intelligence Agency (CIA) deals primarily with national security and intelligence gathering abroad, and the Department of Defense (DoD) is responsible for military operations and national defense. These agencies, while they may work in conjunction with the DOJ, operate under different jurisdictions and mandates, distinguishing them from the FBI's specific integration within the DOJ.