Prohibition failed because it was unenforceable. By 1925, half a dozen states, including New York, passed laws banning local police from investigating violations. Prohibition had little support in the cities of the Northeast and Midwest.
Prohibition did briefly pay some public health dividends. The death rate from alcoholism was cut by 80 percent by 1921 from pre-war levels, while alcohol-related crime dropped markedly. Nevertheless, seven years after Prohibition went into effect, the total deaths from adulterated liquor reached approximately 50,000, and there were many more cases of blindness and paralysis. According to one story, a potential buyer who sent a liquor sample to a laboratory for analysis was shocked when a chemist replied: "Your horse has diabetes."
Prohibition quickly produced bootleggers, speakeasies, moonshine, bathtub gin, and rum runners smuggling supplies of alcohol across state lines. In 1927, there were an estimated 30,000 illegal speakeasies--twice the number of legal bars before Prohibition. Many people made beer and wine at home. It was relatively easy finding a doctor to sign a prescription for medicinal whiskey sold at drugstores.
In 1919, a year before Prohibition went into effect, Cleveland had 1,200 legal bars. By 1923, the city had an estimated 3,000 illegal speakeasies, along with 10,000 stills. An estimated 30,000 city residents sold liquor during Prohibition, and another 100,000 made home brew or bathtub gin for themselves and friends.
Prohibition also fostered corruption and contempt for law and law enforcement among large segments of the population. Harry Daughtery, attorney general under Warren Harding, accepted bribes from bootleggers. George Remus, a Cincinnati bootlegger, had a thousand salesmen on his payroll, many of them police officers. He estimated that half his receipts went as bribes. Al Capone's Chicago organization reportedly took in $60 million in 1927 and had half the city's police on its payroll.