abstract:The Single Convention on Narcotic Drugs of 1961 is an international treaty to prohibit production and supply of specific (nominally narcotic) drugs and of drugs with similar effects except under licence for specific purposes, such as medical treatment and research. As noted below, its major effects included updating the Paris Convention of 13 July 1931 to include the vast number of synthetic opioids invented in the intervening thirty years and a mechanism for more easily including new ones.
Whereas legitimate Mexican traders have free access to America and Canada via the North American Free-Trade Agreement (NAFTA), drug smugglers are granted tariff-free entry to every country in the world thanks to the SingleConventiononNarcoticDrugs, which prohibits the regulation or taxation of their product.