Does cannabis matter anymore? Cannabis use has been falling steadily for a few years; a trend seized on by the government as ‘proof’ that their policy of prohibition is working (Release 2014). At the same time the number of people seeking treatment due to problems with cannabis is on the rise. So how do we make sense of these counter intuitive trends?

A group of experts drawn from across the UK gathered at the University of York to share their ideas, here is a summary of the day.