Across the world attitudes seem to be shifting on the issue of cannabis. In December of last year Uruguay became the first country in the world to fully legalize the sale, production and distribution of the plant, and for those that support a change in legislation, Uruguay is the role model. What was once only discussed by students and hippies, now seems to be a topic of genuine credibility. High-profile British figures such as Nick Clegg, Caroline Lucas, Russel Brand and Richard Branson are all in favour of a change in legislation on the issue of cannabis. Is the UK set to follow in the footsteps of Colorado and Washington, the two American states that have recently legalised cannabis?