Tammi Walker is Principal of St Cuthbert’s Society and Professor of Forensic Psychology at Durham University. She is a Chartered Psychologist and Fellow of the British Psychological Society, Registered Senior Fellow with Advance HE and a mental health nurse by clinical background. Tammi has a visiting position at the Manchester University.

She has spent extensive experience of researching and working in prison and secure care settings, including maximum security prisons for recidivistic sexual and violent offenders. She has completed work in this profession for over 17 years and has an advanced level of knowledge in forensic mental health, forensic psychiatry and forensic psychology.

She is currently working as a series editor with Graham Towl (Durham University) on a new series entitied: New Frontiers in Forensic Psychology for Routledge. These short, co-authored books over the next two years will provide insight into new areas of investigation in forensic psychology, or new perspectives on existing topics of enquiry. Tammi currently collaborates with a number of prison and secure care services. She co-authored 'Tackling Sexual Violence at Universities: An International Perspective' (2019: Routledge Press) and was the lead author of 'Preventing Self-injury and Suicide in Women's Prisons' (2016: Waterside Press) with Professor Graham Towl, which won the national British Psychological Society Book Award 2017 for Best Practitioner Text.