Why did j Edgar hoover join the FBI?

J. Edgar Hoover joined the FBI, then known as the Bureau of Investigation, in 1917 to help combat rising crime and radicalism during a turbulent period in American history. His initial role as a special agent allowed him to implement modern investigative techniques and enhance the bureau's efficiency. Hoover eventually became its director in 1935, where he significantly shaped the FBI's mission and expanded its powers, establishing a lasting legacy in law enforcement.