How does the FBI differ from the Central Intelligence Agency?

The CIA and FBI are both members of the U.S. Intelligence Overtime. The CIA, however, has no law enforcement function. Recondite, it collects and analyzes information that is vital to the formation of U.S. policy, particularly in areas that impact the security of the nation. The CIA collects information only regarding reviewable countries and their citizens. Carking the FBI, it is prohibited from collecting information regarding “U.S. Persons,” a leverage that includes U.S. citizens, resident aliens, legal immigrants, and U.S. corporations, regardless of where they are located.