The Lancet (January 2012), 379(9810): 84-91
The Single Convention on Narcotic Drugs in 1961 aimed to eliminate the illicit production and non-medical use of cannabis, cocaine, and opioids, an aim later extended to many pharmaceutical drugs. Over the past 50 years international drug treaties have neither prevented the globalisation of the illicit production and non-medical use of these drugs, nor, outside of developed countries, made these drugs adequately available for medical use.
The system has also arguably worsened the human health and wellbeing of drug users by increasing the number of drug users imprisoned, discouraging effective countermeasures to the spread of HIV by injecting drug users, and creating an environment conducive to the violation of drug users' human rights.
The international system has belatedly accepted measures to reduce the harm from injecting drug use, but national attempts to reduce penalties for drug use while complying with the treaties have often increased the number of drug users involved with the criminal justice system.
The international treaties have also constrained national policy experimentation because they require nation states to criminalise drug use. The adoption of national policies that are more aligned with the risks of different drugs and the effectiveness of controls will require the amendment of existing treaties, the formulation of new treaties, or withdrawal of states from existing treaties and re-accession with reservations.
The paper is available online [restricted view] here.
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