What happens when a government sets the minimum price for alcohol? In this episode with Professor John Holmes, we unpack the science behind the minimum unit pricing policy, including the model working conducted by Professor Holmes and members of his team. We then find out how minimum unit pricing was implemented in Scotland and whether (and for whom) it impacted drinking. Professor Holmes is a Professor of Alcohol Policy in the Sheffield Centre for Health and Related Research (SCHARR) at the University of Sheffield. He is also the Director of the Sheffield Addictions Research Group, the Lead Director of the Wellcome Doctoral Training Centre in Public Health Economics and Decision Science, and the Co-Director of the NIHR Policy Research Unit in Addictions. Find out more about his work, and the work of the Sheffield Addictions Research Group, here.