Nav Kapur1, Roger Webb2. 1. Centre for Suicide Prevention, Centre for Mental Health and Safety, Institute of Brain, Behaviour and Mental Health, University of Manchester, Manchester M13 9PL, UK. Electronic address: nav.kapur@manchester.ac.uk. 2. Centre for Suicide Prevention, Centre for Mental Health and Safety, Institute of Brain, Behaviour and Mental Health, University of Manchester, Manchester M13 9PL, UK.