Part 1 of Essay
The agency now known as the Federal Bureau of Investigation was founded in 1908 when Attorney General Charles J. Bonaparte appointed an unnamed force of Special Agents to be the investigative force of DOJ. Prior to that time, DOJ borrowed Agents from the U.S. Secret Service to investigate violations of federal criminal law ....

Part 2 of Essay
.... the Bureau's jurisdiction. The Gangster Era began after passage of Prohibition in 1920. Criminals engaged in kidnapping and bank robbery, which were not federal crimes at that time. This changed in 1932 with the passage of a federal kidnapping statute. In 1934, numerous other federal criminal statutes were passed, and Congress gave Special Agents the authority to make arrests and to carry firearms. The FBI's size and jurisdiction during World War II increased greatly and included intelligence matters in Sou ....