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  Thailand is signatories to the three United Nations Conventions on Drug Controls namely 1961 Single Convention on Narcotic Drugs (as amended by the 1972 Protocol), 1971 Convention on Psychotropic Substances, and 1988 Convention against Illicit Traffic in Narcotic Drugs and Psychotropic Substances and firmly stresses the policy of giving a full cooperation on drugs control to foreign countries and international organizations as follows: