This Casebook presents significant legal challenges brought before UK courts and the European Court of Human Rights (ECtHR) involving the UK. It does not attempt to provide an exhaustive overview of all UK cases concerning torture or other ill-treatment. It highlights a curated selection of cases that demonstrate how litigation has shaped the interpretation and application of the UK’s obligations under both domestic and international law, and how it has contributed to the development of legal standards aimed at preventing and responding to torture and other ill-treatment. The Casebook aims to offer a practical and accessible resource for those working in the UK and internationally to support litigation, policy reform, and strengthen protections against torture.