Dr. Lucy Johnstone is a Consultant Clinical Psychologist and worked in Adult Mental Health for many years. She has written and lectured widely on critical perspectives in mental health theory and practice. She is a lead author of the 'Power Threat Meaning Framework' (2018).

Dr. Jo Ramsden is a Consultant Clinical Psychologist and Clinical Lead for Yorkshire Humberside Personality Disorder Partnership. Jo was a contributor to the Power Threat Meaning Framework, and has led the way in supporting its application to forensic settings.

Key references:

The PTMF website, with the main PTMF documents, along with interviews,
slides, resources, good practice examples etc:
https://www.bps.org.uk/member-networks/division-clinical-psychology/power-threat-meaning-framework

Accessible overview of the PTMF as a basis for constructing narratives:
https://www.pccs-books.co.uk/products/a-straight-talking-introduction-to-the-power-threat-meaning-framework-an-alternative-to-psychiatric-diagnosis

Trauma and Recovery by Judith Herman
https://www.amazon.co.uk/Trauma-Recovery-Aftermath-Violence-Political/dp/0465061710

The PTMF in forensic services:

Blog by Jo Ramsden: https://pegortwo.wordpress.com/

Interview with Jo Ramsden: https://www.youtube.com/watch?v=yqUMKNdK0-o

Willmott and Evershed (2018) 'Interviewing people given a diagnosis of
personality disorder in forensic settings' International J of Forensic MH

Reis, Dinelli and Elias (2019) ‘Surviving prison: Using the PTMF to
explore the impact of long-term imprisonment.’ Clinical Psychology
Forum, 313

Willmott and Jones (2022) Trauma-informed forensic practice. Routledge
(see especially chapter 2)

Chapter 12 by Jo Ramsden and Kerry Buckley: 'The PTMF: Implications for
practice within the criminal justice system' in 'Challenging Bias in
Forensic Psychological Assessment and testing. Glenda Liell, Martin
Fisher and Lawrence Jones(eds)

https://www.amazon.co.uk/Challenging-Forensic-Psychological-Assessment-Testing/dp/1032138289