Federal Bureau of Investigation | Definition & History
Alternative Titles: Bureau of Investigation, FBI, United States Bureau of Investigation Federal Bureau of Investigation (FBI), principal investigative agency of the federal government of the United States. The bureau is responsible for conducting investigations in cases where federal laws may have been violated, unless another agency of the federal government has been specifically delegated that duty by statute or executive fiat. As part of the Department of Justice (DOJ), the FBI reports the results of its investigations to the attorney general of the United States and his assistants in...
Source: britannica.com