Gang Busters was an American dramatic radio program heralded as 'the only national program that brings you authentic police case histories.' It premiered as G-Men, sponsored by Chevrolet, on July 20, 1935. The series dramatized FBI cases, which producer-director Phillips H. Lord arranged in close association with Bureau director J. Edgar Hoover. Hoover insisted that only closed cases would be used. Joan Banks was a regular cast member
The radio series was adapted for DC Comics and Big Little Books.
Universal Pictures made a very popular Gang Busters movie serial in 1942, starring Kent Taylor, Irene Hervey, Ralph Morgan and Robert Armstrong.
NBC aired a 30 minute television series version in 1952, hosted by Chester Morris. Episodes of the show were later reedited into two feature films, Gang Busters (1955, with Myron Healey as Public Enemy No. 4) and Guns Don't Argue (1957, with Healey as John Dillinger). (Source: wikipedia.org)