Sarah Markham is an academic mathematician and a member of the Department of Biostatistics and Health Informatics at King's College London. Receive updates on our work Sarah Markham Position External contributor Related Content Sarah MarkhamSarah Markham is an academic mathematician and a member of the Department of Biostatistics and Health Informatics at King's College London. The Case for a Resentencing Review of Extant IPP PrisonersMaking the case for resentencing IPP prisoners in England and Wales 9 July 2026