The FBI is the main federal investigative agency in the United States. It handles major threats like terrorism, espionage, cybercrime, public corruption, civil rights violations, violent crime, and major white-collar crime, while also providing intelligence and support services to other law enforcement agencies.

Quick scoop

In simple terms, the FBI investigates serious federal crimes and protects national security. Its mission is to protect the American people and uphold the Constitution.

What it does

  • Investigates terrorism and domestic or international threats.
  • Tracks foreign intelligence, espionage, and cyber operations.
  • Investigates major crimes such as violent crime, public corruption, and significant white-collar crime.
  • Protects civil rights and works on cases involving hate crimes and discrimination.
  • Provides support to other law enforcement agencies, including fingerprinting, lab work, training, and criminal justice information.

Simple example

If a crime crosses state lines, involves national security, or is too serious for local agencies alone, the FBI may step in. It also helps other agencies with technical and investigative support.

If you want, I can also give you a very short “FBI in one sentence” version.