Now that the voters in Colorado and Washington have approved marijuana legalization initiatives, attention has turned quickly to questions surrounding implementation—and in particular to speculation over how the federal government might react. This is entirely understandable, since it is no secret that the newly approved state initiatives conflict with federal law.
Cannabis is the world’s most widely used illicit drug. But for how much longer? In a short space of time we have moved from absolute global prohibition of the drug, with the emergence of legalised and regulated production and retail not in just one nation (Uruguay) but also, surprisingly, in two US states (Colorado and Washington). Do these and other new permissive models in Spain and Belgium, for example, point to a tipping point in the debate? Could cannabis step out of the shadows and join the ranks of alcohol and tobacco, the world’s most popular legal and regulated drugs?