As the call for the decriminalisation of drugs steadily picks up steam worldwide, a new study by the London-based charity Health Poverty Action concludes there has been no significant reduction in the global use of illicit drugs since the creation of three key U.N. anti-drug conventions, the first of which came into force over half a century ago. “Illicit drugs are now purer, cheaper, and more widely used than ever,” says the report, titled Casualties of War: How the War on Drugs is Harming the World’s Poorest.