In 1935, the Bureau of Investigation was renamed the Federal Bureau of Investigation (FBI). In 1939, the FBI became pre-eminent in the field of domestic intelligence, thanks in large part to changes made by Hoover, such as expanding and combining fingerprint files in the Identification Division, to compile the largest collection of fingerprints to date, and Hoover's help to expand the FBI's recruitment and create the FBI Laboratory, a division established in 1932 to examine and analyze evidence found by the FBI.