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Personal profile


Tammi is the Deputy Director of The Centre for Applied Research in Health (CARH) and is Reader/ Associate Professor in Forensic Psychology at the University of Huddersfield. She is a registered Chartered Psychologist and Fellow of the British Psychological Society, Registered Senior Fellow with Higher Education Academy and a mental health nurse by clinical background. Tammi has visiting positions at the University of Durham and the University of Manchester, where she previously worked as the Programme Director for the MSc in Advanced Practice in Forensic Mental Health.

She has 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 15 years and has an advanced level of knowledge in forensic mental health, forensic psychiatry and forensic psychology. Tammi has contributed extensively to the development and delivery of interventions with imprisoned women in general and she has considerable expertise in the areas of suicide and self-injury

Tammi is Associate Editor of The Journal of Forensic Psychiatry and Forensic Psychology and she is a reviewer for grant applications submitted to the National Institute for Health Research (NIHR), Economic and Social Research Council (ESRC) and Medical Research Council (MRC). 

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.   

Please see below for research expertise, interests and current funded projects.

Research Expertise and Interests:

Tammi currently collaborates with a number of prison and secure care services. She is 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. Tammi is an experienced qualitative researcher with special interest in participatory research, in-depth interviewing, researching sensitive topics, ethics, and ethnographic methods. She is very keen for this work to be triangulated with quantitative research and is often leading projects that use mixed methods approaches. Tammi’s research and publications include suicide, self-harm, forensic mental health, women in the criminal justice system, mental health, sexual violence and recovery.

Current Funded Projects:

NIHR - Health Techonology Assessment Programme, ‘A risk assessment tool to help identify prisoners at further risk of self-harm’. Co-Applicant – Qualitative Lead. Award amount: £624,627.92. [2018-2021]

NIHR - Health Techonology Assessment Programme, 'Women Offenders Repeat Self-Harm Intervention Pragmatic Trial: WORSHIP III'. Co-Applicant – Qualitative Lead. Award amount: £1,446,232.80. [2018-2022]. 

Department of Health Policy Research Programme, ‘Psychologically Safer Prisons at the Core of a Rehabilitative Criminal Justice Pathway’. Co-Applicant – Qualitative Lead. Award amount: £249,792.00. [2017–2019].

NIHR - National Institute of Health Research [RfPB], ‘COVER’ (CamOuflage Makeup for Women prisoners Entering RecoVERy). Co-Applicant – Qualitative Lead. Award amount: £348.000 [2015-2018].


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Research Output 2003 2019

Acceptability and feasibility pilot randomised controlled trial of medical skin camouflage for recovery of women prisoners with self-harm scarring (COVER): the study protocol

Mitchell, H., Abel, K., Dunlop, B., Walker, T., Ranote, S., Robinson, L., Edgar, F., Millington, T., Meacock, R., Shaw, J. & Gutridge, K., 17 Jan 2019, In : BMJ Open. 9, 1, p. 1-11 11 p., e021891.

Research output: Contribution to journalArticle

Open Access
Randomized Controlled Trials

An exploratory study of women prisoners’ attitudes towards their self-harm and the use of medical skin camouflage

Gutteridge, K., Dunlop, B., Patterson, M., Mitchell, H., Philbin, J., Walker, T., Ranote, S., Robinson, L. & Abel, K., 2 Jan 2019, In : Journal of Forensic Psychiatry and Psychology. 30, 1, p. 167-184 18 p.

Research output: Contribution to journalArticle

Open Access

A qualitative study of contemporary secure mental health services: women service users’ views in England

Walker, T., Shaw, J., Edge, D., Senior, J., Sutton, M., Meacock, R., Wilson, H., McNair, L., Mitchell, H., Gutridge, K. & Abel, K., 29 Jul 2019, In : Journal of Forensic Psychiatry and Psychology.

Research output: Contribution to journalArticle

Mental Health Services

Tackling Sexual Violence at Universities: An International Perspective

Towl, G. & Walker, T., 14 Mar 2019, 1st ed. Routledge Taylor & Francis Group. 124 p. (New Frontiers in Forensic Psychology)

Research output: Book/ReportBook

sexual violence
forensic psychology

The experiences of sexually assaulted people attending Saint Mary's Sexual Assault Referral Centre for a forensic medical examination

Rabiya Majeed-Ariss, Walker, T., Lee, P. & Dr Catherine White, 1 Aug 2019, In : Journal of Forensic and Legal Medicine. 66, p. 33-37 5 p.

Research output: Contribution to journalArticle

medical examination
Referral and Consultation

Activities 2015 2019

  • 4 PhD Examination
  • 2 Organising a conference, workshop, ...
  • 2 Editorial work

External Examiner (Professional Doctorate in Counselling Psychology)

Tammi Walker (Examiner)
Jan 2019

Activity: Examination typesPhD Examination

Tackling Sexual Violence at Universities

Tammi Walker (Organiser)
8 Apr 2019

Activity: Participating in or organising an event typesOrganising a conference, workshop, ...

Advances in Dual Diagnosis (Journal)

Tammi Walker (Member of editorial board)
2018 → …

Activity: Publication peer-review and editorial work typesEditorial work

Mother-Infant Separation in Prison: Problematising Attachment Theory in Policy and Practice.

Tammi Walker (Examiner)
Jul 2018

Activity: Examination typesPhD Examination

Exploring the use of the Listener scheme for women who self-harm in prison

Tammi Walker (Examiner)
Nov 2017

Activity: Examination typesPhD Examination

Press / Media

Locked up and Vulnerable: When prison makes things worse.

Tammi Walker


1 media contribution

Press/Media: Expert Comment

Key Change - Contact Theatre

Tammi Walker


1 media contribution

Press/Media: Public Engagement Activities

How to prevent prisoners from attempting suicide?

Tammi Walker


1 media contribution

Press/Media: Public Engagement Activities