The head of the U.S. Bureau of Prohibition when alcohol prohibition was repealed in 1933, Harry J. Anslinger (1892–1975) was the founding commissioner of the Federal Bureau of Narcotics which is credited for the 1937 Marihuana Tax Act criminalizing cannabis. The Marihuana Tax Act was ruled unconstitutional by the U.S. Supreme Court in 1969, but was replaced with the Controlled Substances Act.

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