Andrew Forrester1, Karen Slade2. 1. South London and Maudsley NHS Foundation Trust, and Institute of Psychiatry, King's College London, London, UK; Mental Health In-Reach Team, HM Prison Brixton, London SW2 5XF, UK. Electronic address: andrew.forrester1@nhs.net. 2. College of Business Law and Social Sciences, School of Social Sciences, Nottingham Trent University, Nottingham, UK.