Bureau of Investigation

Before 1908 the US Department of Justice had no organized institution or group of investigators to gather intelligence. The Department of Justice hired Secret Service agents and private investigators, possibly Pinkerton National Detective Agency. However, congress began to complain of this approach of having a secret service department in every bureau. On July 26, 1908 Attorney General Charles Joseph Bonaparte created the Bureau of Investigation (BOI) during the presidency of Theodore Roosevelt. It was renamed as the federal Bureau of Investigation (FBI) in 1935.