Photograph of Chief Prohibition Investigator W.A Green. Investigators went beyond traditional policing practices and began to conduct undercover work in order to stop bootlegging rings.
The Volstead Act primarily concerned the manufacturing and sale of alcohol. Prohibition agent were tasked to focus on illegal distilleries and transportation.
Manufacture more often than not occurred in rural areas and then transported to urban cities. Prohibition Bureau state headquarters were limited to high population areas which worked to the bootleggers advantage