Organised crime appears to be succeeding where many governments have failed in stopping people from sampling the most dangerous strains of cannabis . While illegal drugs like heroin and cocaine are sold in Sicily , data revealed the capital, Palermo, was completely free of high-potency skunk. This appears to be an unexpected positive of criminal activity, given the link the research revealed between such drugs and mental health problems. We’ll tell you what’s true. You can form your own view.