Prove it.
Spies. Terrorists. Hackers. Pedophiles. Mobsters. Gang leaders and serial killers. We investigate them all, and many more besides.
The very heart of FBI operations lies in our investigations—which serve, as our mission states, “to protect and defend the United States against terrorist and foreign intelligence threats and to enforce the criminal laws of the United States.” We currently have jurisdiction over violations of more than 200 categories of federal law, and you can find the major ones below, grouped within our three national security priorities and our five criminal priorities. Also visit our Intelligence program site, which underpins and informs all our investigative programs.
FBI — What We Investigate
It’s our top priority—protecting the U.S. from terrorist attacks.
Working closely with a range of partners, we use our growing suite of investigative and intelligence capabilities to neutralize terrorist cells and operatives here in the U.S., to help dismantle extremist networks worldwide, and to cut off financing and other forms of support provided by terrorist sympathizers.
FBI — Terrorism