Single Convention on Narcotic Drugs
In 1961 Australia signed the International Single Convention on Narcotic Drugs, this convention supports an obligation to make cannabis available as a medicine. On the 30 May 1967 the commonwealth government introduced the "Narcotic Drugs Act 1967 this Act gives effect to certain of Australia's obligations under the Single Convention on Narcotic Drugs, 1961." The 1961 Single Convention has since been supplemented by the Convention on Psychotropic Substances and United Nations Convention Against Illicit Traffic in Narcotic Drugs and Psychotropic Substances.