A holdover from the golden age of radio (which also spawned a popular movie serial), the TV crime drama first ran on NBC during 1952 and re-emerged in first-run syndication in 1954, producing 39 more episodes. 

FYI: As mentioned during this segment, actor Chester Morris served as series host during Gang Busters' NBC run, except he held that job in the second season. Series creator Phillips Lord was host in the first season. For the series' syndicated run, introductory and closing remarks were provided by actors portraying law officers in that week's story.