John Howard , Julia Butt , Tracey Wright , Melissa Norberg , Jan Copeland , Ted Wilkes National Cannabis Prevention and Information Centre, University of New South Wales, NSW 2052, Australia. National Drug Research Institute Curtin University, Perth, Western Australia, Australia.

Please note that the information on cannabis and the law given in this bulletin does not constitute legal advice and should not be relied upon in this way. The information is correct at the time of publication. People wanting legal advice should consult a lawyer. Correct as of March 2012.

Cannabis is the world’s most widely used illicit drug. In Australia, one in three have tried it, and almost one in ten have used it in the past year. While the majority of cannabis use is intermittent and self-limiting, a significant minority will use it more often, for a longer period of…

Alcohol and other drug treatment agencies routinely collect a large range of client data upon intake, during treatment and upon treatment cessation. The usefulness of such data is often underestimated and generally under-utilised during treatment planning and while preparing funding applications.…

The UNODC World Drug Report for 2009 estimated that the number of people worldwide who used cannabis in 2007 was between 143 and 190 million persons, with the highest levels of use occurring in North America and Western Europe. The report also noted the recent decline in use among young people in…