Detroit's Purple Gang, a mostly Jewish organized crime syndicate, consolidated control over bootlegging routes across the Detroit River from Canada during Prohibition. Their ruthless violence and business acumen made them one of the most feared criminal organizations in America, later collaborating with and supplying liquor to Al Capone's Chicago Outfit.
Prohibition turned the narrow stretch of water between Detroit and Windsor, Ontario into one of the most profitable smuggling corridors in American history, and the Purple Gang ran it. Composed largely of the sons of Jewish immigrants from Detroit's Lower East Side, the gang built a reputation for both business efficiency and shocking brutality.
By the mid-1920s they controlled the flow of Canadian whisky into Detroit, taxing rival bootleggers and eliminating competitors. Their notoriety grew so large that Al Capone reportedly preferred buying whisky from them rather than risk turf war by trying to take over Detroit's rackets himself.
The gang's violent internal disputes and a series of gangland killings eventually drew intense law enforcement pressure, and by the 1930s prosecutions and internal betrayals dismantled much of their power. Their story remains a vivid chapter of Prohibition-era organized crime, illustrating how the liquor ban created vast criminal fortunes almost overnight.