Are the fears and reservations towards legalisation of cannabis justified? Tom Decorte, professor of criminology and director of the Institute for Social Drug research (ISD) at Ghent University, provides answers based on facts and analyses. He deconstructs various arguments that are often put forward to reject such legalisation (it would result in an increase in use, cannabis is an alleged gateway to other, supposedly «harder» drugs, etc.) and restates the purpose of drug policy.