International treaties concerned with the control of production and distribution of psychoactive drugs. Early treaties (General Brussels Act, 1889-90, and St Germain-en-Laye Convention of 1912) controlled liquor traffic in Africa in the colonial era. The first treaty dealing with currently controlled substances was the Hague Convention of 1912: its provisions and those of succeeding agreements were consolidated in the Single Convention on Narcotic Drugs (1961; amended by a 1972 Protocol). To this have been added the 1971 Convention on Psychotropic Substances and the 1988 Convention against Illicit Traffic in Narcotic Drugs and Psychotropic Substances.
For more information on drug laws, see the European Legal Database on DrugsWHO Lexicon of alcohol and drug terms