Class C substances. Fourth Schedule Precursor substances. Conventions The Expert Advisory Committee on Drugs (EACD) makes scheduling decisions, based on scientific and medical evidence and/or international treaty obligations. New Zealand is a party to the Single Convention on Narcotic Drugs, the Convention on Psychotropic Substances and the United Nations Convention Against Illicit Traffic in Narcotic Drugs and Psychotropic Substances. National Drug Policy New Zealand notes, "The Conventions place certain obligations on signatory countries. When the UN classifies (or re-classifies) a substance under one of the above Conventions, it requires signatory countries to amend their domestic legislation to ensure consistency with the UN's amendment. Accordingly, the impetus for some of the drugs to be considered by the EACD will originate from decisions made at the UN". See also Alcohol in New Zealand Cannabis in New Zealand Presumption of supply in New Zealand Psychoactive Substances Act 2013 Victimless crime References External links Misuse of Drugs Act 1975 – text of the Act Review of Misuse of Drugs Act 1975 at the New Zealand Law Commission Statutes of New Zealand Drug control law 1975 in New Zealand law Drug policy of New Zealand