Staff profile

I am Professor of Forensic Psychology in the Department of Psychology at Durham University and Director of the Health and Justice Forensic Research Lab. I am a Fellow and Chartered Psychologist of the British Psychological Society (BPS) and a Registered Senior Fellow of Advance HE.

My research focuses on improving health outcomes for adults, particularly women, who come into contact with prisons and forensic mental health services and who experience multiple long-term conditions. I am interested in the intersections between self-harm, severe mental illness, physical health conditions, substance use, and social disadvantage, with a particular focus on addressing health inequalities experienced by marginalised populations.

Alongside my academic role, I served as Principal of St Cuthbert's Society from 2021 to 2026, leading one of Durham University's largest and most diverse collegiate communities and contributing to the wider student experience.

Research

I direct the Health and Justice Forensic Research Lab at Durham University. My work brings together perspectives from psychology, public health, psychiatry, primary care, criminology, and the medical humanities to better understand and address health inequalities among people who come into contact with health and justice services. https://healthjusticeforensicresearch.webspace.durham.ac.uk/

I have secured and led major research grants, including NIHR-funded studies, and use mixed-methods approaches to investigate how services can better meet the needs of people with complex and often overlapping health and social care needs. My research is designed to generate evidence that informs policy, practice, and service improvement.

Collaboration is central to my work. I work closely with healthcare providers, criminal justice agencies, policymakers, third-sector organisations, and experts by experience to ensure that research findings translate into meaningful change in policy and practice.

Patient and Public Involvement and Engagement

Patient and Public Involvement and Engagement (PPIE) is central to my research. I work collaboratively with people who have lived experience of imprisonment, forensic mental health services, severe mental illness, self-harm, substance use, and multiple long-term health conditions.

People with lived experience contribute throughout the research process, including identifying research priorities, shaping study design, interpreting findings, and supporting dissemination activities. This ensures that research remains meaningful, relevant, and capable of improving services and outcomes for those most affected by health and justice inequalities.

Policy and Professional Leadership

I have contributed to national policy and practice through appointments including the Ministry of Justice Women in the Criminal Justice System Expert Group and His Majesty's Inspectorate of Probation and Prisons' Expert Reference Group for the joint thematic inspection of work undertaken with women in the criminal justice system.

I am Chair of the British Psychological Society's North East of England Branch, representing psychologists across the region and supporting the advancement of psychological science, education, and practice. Internationally, I am Co-Chair of the International Association for Suicide Prevention (IASP) Special Interest Group on Suicide Prevention in the Criminal Justice Sector, working with colleagues across the world to advance research, policy, and practice aimed at reducing suicide and self-harm among people in contact with justice systems.

Teaching and Research Supervision

I am passionate about supporting the next generation of researchers and practitioners. I supervise postgraduate and doctoral researchers across forensic psychology, mental health, health inequalities, and criminal justice. Through the Health and Justice Forensic Research Lab, I foster an interdisciplinary and supportive research environment that encourages collaboration, public engagement, and impactful research.

Publications and Editorial Roles

Between 2021 and 2025, I founded and served as Series Editor of Routledge's New Frontiers in Forensic Psychology series, which published seven books exploring emerging areas of forensic psychology.

My publications include Criminal Women (2022), Tackling Sexual Violence at Universities: An International Perspective (2019), and Preventing Self-Injury and Suicide in Women's Prisons (2016). The latter received the British Psychological Society Book Award for Best Practitioner Text in 2017.

 

Selected Awarded Grants

2025: Durham University Grant Seedcorn Fund: Neurodiversity, Mental Health, and the Criminal Justice System. Principal Investigator.

2025: NIHR School for Primary Care Research: Improving Patient and Public Involvement and Engagement with Imprisoned Women with Severe Mental Illness. Principal Investigator.

2025: NIHR Team Science: A Team Science Approach to examIning the management and Prevalence of multiple Long-Term cOnditions within England's Prison service [TIPTOP]. Principal Investigator.

2024: NIHR [RfPB]: Improving Services for Imprisoned Women with Severe Mental Illness [IPSIS]. Principal Investigator.

2023: HTA Programme: Women Offenders Repeat Self-Harm Intervention Pragmatic Trial: WORSHIP III. Co-Investigator. With Manchester University.

2022: UK Universities: UK-Ukraine R&I twinning grants scheme form. Multidisciplinary approaches to building research capacity and resilence through partnership during conflict. Co-Investigator.

2021: NIHR [RfPB]: Increasing Physical Activity in a Medium Secure Service: The Development and Feasibility of a Physical ACTivity Intervention [IMPACT]. Principal Investigator.

2021: NIHR: WHOLE-SMI - Wellbeing And HOListic Health Promotion For People With Severe Mental Illness. Co-Investigator. With Newcastle University.

2021: NIHR [ARC NENC]: Heroin Assisted Treatment Intervention (HATI): A qualitative exploration. Principal Investigator.

Esteem Indicators

2025-Current: Co-Chair of the International Association for Suicide Prevention (IASP) Special Interest Group on Suicide Prevention in the Criminal Justice Sector

2025-Current: Member of County Durham Mental Health and Wellbeing System Partnership Board. 

2024-Current: Chair of the British Psychological Society North East of England Branch representing psychologists across the North East of England.

2024-Current: Invited member to Durham and Darlington’s Combatting Drugs and Alcohol Partnership Expert Group.

2023-Current: Review Editor of Forensic and Legal Psychology (specialty section of Frontiers in Psychology).

2026-Current: Topic Editors - Frontiers in Psychology - Trauma-Informed Care in Forensic and Justice Settings.

2024-2026: Topic Editor – Frontiers in Psychiatry - Women Offenders: The Challenge of Evidence-based Practice in Correctional and Forensic Mental Health Services.

2021-2025: Founder and Series Book Editor - New Frontiers in Forensic Psychology (Routledge). Seven books were published that provided insight into new and original areas of investigation in forensic psychology.

 

 

• Forensic mental health issues and women in contact with the criminal justice system
• Inequalities in mental and physical health among forensic populations
• Multiple Long-Term Conditions among forensic populations
• Addictions - Drugs and Alcohol Services in Education and NHS

Authored book

• Criminal Women: Gender Matters
  
  Grace, S., O’Neill, M., Walker, T., King, H., Baldwin, L., Jobe, A., Lynch, O., Measham, F., O’Brien, K., & Seaman, V. (2024). Criminal Women: Gender Matters (1st ed.). Bristol University Press.
• Tackling Sexual Violence at Universities: An International Perspective
  
  Towl, G. J., & Walker, T. (2019). Tackling Sexual Violence at Universities: An International Perspective. Routledge. https://doi.org/10.4324/9781351201995
• Preventing Self-injury and Suicide in Women’s Prisons
  
  Walker, T., & Towl, G. (2016). Preventing Self-injury and Suicide in Women’s Prisons. Waterside Press.

Chapter in book

• Gender-based violence and Higher Education partnerships with sexual assault services
  
  Hughes, E., & Walker, T. (2022). Gender-based violence and Higher Education partnerships with sexual assault services. In C. J. Humphreys & G. J. Towl (Eds.), Stopping Gender-based Violence in Higher Education: Policy, Practice, and Partnerships (pp. 336-349). Routledge.
• Criminal Women in Prison Who Self-harm: What Can We Learn from Their Experiences?
  
  Walker, T. (2022). Criminal Women in Prison Who Self-harm: What Can We Learn from Their Experiences? In Criminal Women: Gender Matters (pp. 87-106). Policy Press. https://doi.org/10.1332/policypress/9781529208399.003.0005
• Intersectional Inequalities and Women in Secure Settings
  
  Taylor, J., & Walker, T. (2022). Intersectional Inequalities and Women in Secure Settings. In J. Tomlin & B. Völlm (Eds.), Diversity and Marginalisation in Forensic Mental Health Care. Routledge. https://doi.org/10.4324/9781003184768-5
• Suicide, Self-harm and Imprisoned Women
  
  Walker, T. (2021). Suicide, Self-harm and Imprisoned Women. In Forensic Psychology. Wiley.
• Trauma Informed Care in the Criminal Justice System
  
  Walker, T. (2021). Trauma Informed Care in the Criminal Justice System. In D. A. Crighton & G. J. Towl (Eds.), Forensic Psychology (pp. 735-750). Wiley.
• Self-Harm
  
  Walker, T. (2014). Self-Harm. In P. Taylor, K. Corteen, & S. Morley (Eds.), A Companion to Criminal Justice, Mental Health & Risk.
• A contemporary reflection on feminist criminology: Whose side are we on?
  
  Lavis, V., & Walker, T. (2013). A contemporary reflection on feminist criminology: Whose side are we on? In M. Cowburn, M. Duggan, A. Robinson, & P. Senior (Eds.), Values in Criminology and Community Justice (pp. 57-75).

Edited book

• Criminal Women
  
  Grace, S., O’Neill, M., Walker, T., King, H., Baldwin, L., Jobe, A., Lynch, O., Measham, F., O’Brien, K., & Seaman, V. (Eds.). (in press). Criminal Women (1st ed.). Bristol University Press.

Journal Article

• A Qualitative Exploration of the Gendered Dimensions of Violence against Emergency Workers
  
  Birchall, M., Kelman, J., & Walker, T. (in press). A Qualitative Exploration of the Gendered Dimensions of Violence against Emergency Workers. Journal of Criminal Psychology.
• Trauma Informed Care for Girls in the Children and Young Person Secure Estate (CYPSE): A Co-produced Rapid Evidence Review
  
  Mckeown, A., Good, A., Lee, R., & Walker, T. (2025). Trauma Informed Care for Girls in the Children and Young Person Secure Estate (CYPSE): A Co-produced Rapid Evidence Review. Child & Youth Care Forum. Advance online publication. https://doi.org/10.1007/s10566-025-09879-z
• Barriers and facilitators to increasing physical activity in medium secure mental health settings: an exploration of staff perceptions
  
  Lewis, K., Roden-Lui, G., Faulkner, G., Gibbon, S., Hewitt, C., Hughes, E., Khan, W., Lucock, M., Singh, B., Walters, P., Watson, J., & Walker, T. (2025). Barriers and facilitators to increasing physical activity in medium secure mental health settings: an exploration of staff perceptions. Mental Health and Physical Activity, 28, Article 100663. https://doi.org/10.1016/j.mhpa.2024.100663
• A feasibility study of a physical activity intervention for people with severe mental illness in medium secure psychiatric services in the United Kingdom
  
  Roden-Lui, G., Faulkner, G., Lucock, M., Gibbon, S., Hewitt, C., Hughes, E., Khan, W., Lewis, K., Singh, B., Walters, P., Watson, J., & Walker, T. (2025). A feasibility study of a physical activity intervention for people with severe mental illness in medium secure psychiatric services in the United Kingdom. Frontiers in Psychiatry, 16, Article 1558602. https://doi.org/10.3389/fpsyt.2025.1558602
• Female service user’s experiences of collaborative HCR-20V3 risk assessment on a low and medium secure ward
  
  Swift, J., Walker, T., & Moon, L. (2025). Female service user’s experiences of collaborative HCR-20V3 risk assessment on a low and medium secure ward. The Journal of Forensic Psychiatry & Psychology, 36. https://doi.org/10.1080/14789949.2025.2469698
• Medical skin camouflage for women in prison with self-harm scars (COVER): randomised feasibility study
  
  Gutridge, K., Robinson, L., Mitchell, H., Meacock, R., Ranote, S., Shaw, J., Walker, T., & Abel, K. M. (2025). Medical skin camouflage for women in prison with self-harm scars (COVER): randomised feasibility study. The Journal of Forensic Psychiatry & Psychology, 36(2), 213-232. https://doi.org/10.1080/14789949.2024.2420965
• Co-located Heroin Assisted Treatment within primary care: A preliminary analysis of the implications for healthcare access, cost, and treatment delivery in the UK.
  
  Poulter, H. L., Moore, H. J., Ahmed, D., Riley, F., Walker, T., & Harris, M. (2024). Co-located Heroin Assisted Treatment within primary care: A preliminary analysis of the implications for healthcare access, cost, and treatment delivery in the UK. International Journal of Drug Policy, 126, Article 104367. https://doi.org/10.1016/j.drugpo.2024.104367
• Diamorphine assisted treatment in Middlesbrough: a UK drug treatment case study
  
  Poulter, H., Moore, H., Crow, R., Ahmed, D., & Walker, T. (2024). Diamorphine assisted treatment in Middlesbrough: a UK drug treatment case study. Journal of Substance Use, 29(1), 61-67. https://doi.org/10.1080/14659891.2022.2120433
• More than just ‘free heroin’: Caring whilst navigating constraint in the delivery of diamorphine assisted treatment
  
  Poulter, H., Walker, T., Ahmed, D., Moore, H., Riley, F., Towl, G., & Harris, M. (2023). More than just ‘free heroin’: Caring whilst navigating constraint in the delivery of diamorphine assisted treatment. International Journal of Drug Policy, 116, Article 104025. https://doi.org/10.1016/j.drugpo.2023.104025
• ‘This is hardcore’: a qualitative study exploring service users’ experiences of Heroin-Assisted Treatment (HAT) in Middlesbrough, England
  
  Riley, F., Harris, M., Poulter, H., Moore, H., Ahmed, D., Towl, G., & Walker, T. (2023). ‘This is hardcore’: a qualitative study exploring service users’ experiences of Heroin-Assisted Treatment (HAT) in Middlesbrough, England. Harm Reduction Journal, 20, Article 66. https://doi.org/10.1186/s12954-023-00785-y
• Well-being programmes in prisons in England and Wales: a mixed-methods study
  
  Turner, M., King, N., Mojtahedi, D., Burr, V., Gall, V., Gibbs, G. R., Hudspith, L. F., Leadley, C. B., & Walker, T. (2022). Well-being programmes in prisons in England and Wales: a mixed-methods study. International Journal of Prisoner Health, 18(3). https://doi.org/10.1108/ijph-03-2021-0021
• A qualitative exploration of the views of people with lived experience of suicide within the criminal justice system
  
  Walker, T., Wainwright, V., Dunlop, B., Forrester, A., Senior, J., & Shaw, J. (2022). A qualitative exploration of the views of people with lived experience of suicide within the criminal justice system. The Journal of Forensic Psychiatry & Psychology, 33(6), 868-882. https://doi.org/10.1080/14789949.2022.2149418
• Using mixed methods to explore diabetes care in a medium‐secure setting in England: A case study
  
  Walker, T., Edmondson, A., Riley, F., Harper, M., Lucock, M., & Wright, N. (2021). Using mixed methods to explore diabetes care in a medium‐secure setting in England: A case study. Health Science Reports, 4(4), Article e462. https://doi.org/10.1002/hsr2.462
• The justice system is failing victims and survivors of sexual violence: A response to the 2021 rape review
  
  Walker, T., Foster, A., Majeed-Ariss, R., & Horvath, M. (2021). The justice system is failing victims and survivors of sexual violence: A response to the 2021 rape review. Psychologist, 34(8), 42-45.
• The role of primary care in supporting imprisoned women with mental illness
  
  Walker, T., Kallevik, J., Hard, J., Mastrocola, E., & Chew-Graham, C. (2021). The role of primary care in supporting imprisoned women with mental illness. British Journal of General Practice, 71(710), 392-393. https://doi.org/10.3399/bjgp21x716813
• Lessons Learnt from the Narratives of Women Who Self-Harm in Prison
  
  Walker, T., Shaw, J., Gibb, J., Turpin, C., Reid, C., Gutridge, K., & Abel, K. (2021). Lessons Learnt from the Narratives of Women Who Self-Harm in Prison. Crisis, 42(4), 255-262. https://doi.org/10.1027/0227-5910/a000714
• The nature and extent of prisoners’ social care needs: Do older prisoners require a different service response?
  
  Tucker, S., Hargreaves, C., Cattermull, M., Roberts, A., Walker, T., Shaw, J., & Challis, D. (2021). The nature and extent of prisoners’ social care needs: Do older prisoners require a different service response? Journal of Social Work, 21(3), 310–328. https://doi.org/10.1177/1468017319890077
• Processes and challenges associated with establishing a linked national suicide database across the criminal justice system
  
  Dawson, A., Wainwright, V., Shaw, J., Senior, J., Fazel, S., Perry, A., Walker, T., & Pratt, D. (2021). Processes and challenges associated with establishing a linked national suicide database across the criminal justice system. International Journal of Population Data Science, 6(1), 1-13. https://doi.org/10.23889/ijpds.v6i1.1376
• Women’s experiences of attending an English sexual assault referral centre: an exploratory study
  
  Walker, T., Majeed-Ariss, R., Riley, R., & White, C. (2020). Women’s experiences of attending an English sexual assault referral centre: an exploratory study. Journal of Forensic Psychiatry and Psychology, 31(1), 123-136. https://doi.org/10.1080/14789949.2019.1683217
• 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. M. (2019). A qualitative study of contemporary secure mental health services: women service users’ views in England. Journal of Forensic Psychiatry and Psychology, 30(5), 836-853. https://doi.org/10.1080/14789949.2019.1646305
• The experiences of sexually assaulted people attending Saint Mary's Sexual Assault Referral Centre for a forensic medical examination
  
  Majeed-Ariss, R., Walker, T., Lee, P., & White, C. (2019). The experiences of sexually assaulted people attending Saint Mary’s Sexual Assault Referral Centre for a forensic medical examination. Journal of Forensic and Legal Medicine, 66, 33-37. https://doi.org/10.1016/j.jflm.2019.06.001
• An exploratory study of women prisoners’ attitudes towards their self-harm and the use of medical skin camouflage
  
  Gutridge, K., Dunlop, B. J., Patterson, M., Mitchell, H., Philbin, J., Walker, T., Ranote, S., Robinson, L., & Abel, K. M. (2019). An exploratory study of women prisoners’ attitudes towards their self-harm and the use of medical skin camouflage. Journal of Forensic Psychiatry and Psychology, 30(1), 167-184. https://doi.org/10.1080/14789949.2018.1530285
• 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. M., Dunlop, B. J., Walker, T., Ranote, S., Robinson, L., Edgar, F., Millington, T., Meacock, R., Shaw, J., & Gutridge, K. (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. BMJ Open, 9(1), Article e021891. https://doi.org/10.1136/bmjopen-2018-021891
• Implementing seclusion in forensic mental health care: A qualitative study of staff decision making
  
  Green, R., Shelly, C., Gibb, J., & Walker, T. (2018). Implementing seclusion in forensic mental health care: A qualitative study of staff decision making. Archives of Psychiatric Nursing, 32(5), 764-768. https://doi.org/10.1016/j.apnu.2018.04.008
• The PARALLEL Study (imPAct of expeRiencing Another’s seLf harm and suicidaL bEhaviour in hospitaL)
  
  Hargate, R., Howden, S., Tarpey, E., & Walker, T. (2017). The PARALLEL Study (imPAct of expeRiencing Another’s seLf harm and suicidaL bEhaviour in hospitaL). Journal of Forensic Practice, 19(4), 258-268. https://doi.org/10.1108/jfp-01-2017-0001
• ‘Coping with the job’: prison staff responding to self-harm in three English female prisons: a qualitative study
  
  Walker, T., Shaw, J., Hamilton, L., Turpin, C., Reid, C., & Abel, K. (2017). ‘Coping with the job’: prison staff responding to self-harm in three English female prisons: a qualitative study. The Journal of Forensic Psychiatry & Psychology, 28(6), 811-824. https://doi.org/10.1080/14789949.2017.1331369
• Contemporary women's secure psychiatric services in the United Kingdom: A qualitative analysis of staff views
  
  Walker, T., Edge, D., Shaw, J., Wilson, H., McNair, L., Mitchell, H., Gutridge, K., Senior, J., Sutton, M., Meacock, R., & Abel, K. (2017). Contemporary women’s secure psychiatric services in the United Kingdom: A qualitative analysis of staff views. Journal of Psychiatric and Mental Health Nursing, 24(9-10), 660-670. https://doi.org/10.1111/jpm.12416
• Women in secure care
  
  Walker, T., Logan, C., & Shaw, J. (2017). Women in secure care. Journal of Forensic Psychiatry and Psychology, 28(2), 155-157. https://doi.org/10.1080/14789949.2016.1276714
• The WORSHIP II study: a pilot of psychodynamic interpersonal therapy with women offenders who self-harm
  
  Walker, T., Shaw, J., Turpin, C., Reid, C., & Abel, K. (2017). The WORSHIP II study: a pilot of psychodynamic interpersonal therapy with women offenders who self-harm. Journal of Forensic Psychiatry and Psychology, 28(2), 158-171. https://doi.org/10.1080/14789949.2017.1301529
• Secure pathways for women in the UK: lessons from the women’s enhanced medium secure services (WEMSS) pilots
  
  Edge, D., Walker, T., Meacock, R., Wilson, H., McNair, L., Shaw, J., Gutridge, K., Mitchell, H., Robinson, L., Senior, J., Sutton, M., & Abel, K. (2017). Secure pathways for women in the UK: lessons from the women’s enhanced medium secure services (WEMSS) pilots. Journal of Forensic Psychiatry and Psychology, 28(2), 206-225. https://doi.org/10.1080/14789949.2016.1244279
• A qualitative study of good-bye letters in prison therapy: Imprisoned women who self-harm
  
  Walker, T., Shaw, J., Turpin, C., Roberts, C., Reid, C., & Abel, K. (2017). A qualitative study of good-bye letters in prison therapy: Imprisoned women who self-harm. Crisis, 38(2), 100-106. https://doi.org/10.1027/0227-5910/a000411
• Supporting imprisoned women who self-harm: exploring prison staff strategies
  
  Walker, T., Shaw, J., Hamilton, L., Turpin, C., Reid, C., & Abel, K. (2016). Supporting imprisoned women who self-harm: exploring prison staff strategies. Journal of Criminal Psychology, 6(4), 173-186. https://doi.org/10.1108/JCP-02-2016-0007
• Prisoner suicide
  
  Towl, G., & Walker, T. (2015). Prisoner suicide. Psychologist, 28(11), 886-889.
• Medical skin camouflage: A recovery intervention for female prisoners who self-harm?
  
  Walker, T., Shaw, J., Ranote, S., Doyle, M., Poursanidou, K., Meacock, R., & Abel, K. (2014). Medical skin camouflage: A recovery intervention for female prisoners who self-harm? Criminal Behaviour and Mental Health, 24(5), 317-320. https://doi.org/10.1002/cbm.1943
• Health and social care services for women offenders: current provision and a future model of care
  
  Bartlett, A., Walker, T., Harty, M. A., & Abel, K. M. (2014). Health and social care services for women offenders: current provision and a future model of care. Journal of Forensic Psychiatry and Psychology, 25(6), 625-635. https://doi.org/10.1080/14789949.2014.944202
• Voices from the Group: Violent Women's Experiences of Intervention
  
  Walker, T. (2013). Voices from the Group: Violent Women’s Experiences of Intervention. Journal of Family Violence, 28(4), 419-426. https://doi.org/10.1007/s10896-013-9509-x
• 'Seeing beyond the battled body'- An insight into selfhood and identity from women's accounts who self-harm with a diagnosis of borderline personality disorder
  
  Walker, T. (2009). ’Seeing beyond the battled body’- An insight into selfhood and identity from women’s accounts who self-harm with a diagnosis of borderline personality disorder. Counselling and Psychotherapy Research, 9(2), 122-128. https://doi.org/10.1080/14733140902909174
• The use of time base lag sequential analysis to look at the relationship between environmental events and challenging behaviour in people with learning disabilities
  
  Whitaker, S., Walker, T., & McNally, C. (2004). The use of time base lag sequential analysis to look at the relationship between environmental events and challenging behaviour in people with learning disabilities. Behavioural and Cognitive Psychotherapy, 32(1), 67-76. https://doi.org/10.1017/S1352465804001079
• Caseload management in community learning disability teams: Influences on decision-making
  
  Walker, T., Stead, J., & Read, S. G. (2003). Caseload management in community learning disability teams: Influences on decision-making. Journal of Learning Disabilities, 7(4), 297-321. https://doi.org/10.1177/1469004703074001

Other (Print)

• Improving primary care services for imprisoned women with severe mental illness (IP-SIS) Protocol Paper
  
  Roden-Lui, G., Chew-Graham, C. A., Hard, J., Harriott, P., King, H., Mastrocola, E., & Walker, T. (2025). Improving primary care services for imprisoned women with severe mental illness (IP-SIS) Protocol Paper. NIHR Open Research.