Alex Stevens is a professor at the University of Sheffield's Centre for Criminological Research (School of Law). He holds a PhD in Social Policy from the University of Kent. He is a past President of the International Society for the Study of Drug Policy. His research focuses on the overlap described in the title of his 2011 book on Drugs, Crime and Public Health (Routledge). He was a member of the UK Advisory Council on the Misuse of Drugs, before resigning in 2019. In 2018, he worked for the Irish government on a review of alternatives to decriminalisation for drug possession, which was then published in the European Journal of Criminology. His most recent research focuses on police-led drug diversion schemes in England, and on drug policymaking at the UN and in South-East Asia. This draws on his latest book: Drug Policy Constellations: The Role of Power and Morality in the Making of Drug Policy in the UK (Bristol University Press).