Our Team

Meet Our Expert Psychologists

Offering a UK wide service, PM Psychology is an established firm of Expert Witness Forensic Psychologists and providers of Therapeutic Services. We undertake assessments of adolescents and adults who are involved in both care proceedings and pre-proceedings and we provide reports to the Family Courts, Social Services, and other agencies. Our Psychological Therapeutic Services are based on a meticulous and scientific approach to reviewing the evidence-base and on-going training with official providers. Services are available for Private Clients and Referring Agencies for a range of difficulties, utilising techniques from various approaches for the benefit of our clients.

Dr Shaun Parsons

Director, Consultant Forensic Psychologist, Registered Psychologist, Chartered Psychologist, Chartered Scientist, Associate Fellow of the British Psychological Society, Fellow of the Higher Education Academy, Health and Care Professions Council, PhD, MSc, G.Dip Psych, Dip. HE, BSc (Hons)

Dr. Shaun Parsons is a Forensic Psychologist and has been carrying out expert assessments for the courts for over fourteen years.

His recent professional practice has concentrated on applying a risk assessment model to parenting assessment. He particularly focuses on the association between personality structure as a method of explaining past difficulties and parenting and the use of this information to provide a risk assessment that is robust and based on sound scientific theoretical underpinnings.  He is able to assess the risks of violence, substance use, personality difficulties and interpersonal relationships and their impact on parenting.

He has received specialist training on working and assessing sexual offenders and their families including partners' ability to protect. Dr. Parsons also has a special interest in the assessment of capacity especially of people with physical and/ or sensory impairments. Dr. Parsons is trained in EMDR and Solution Focused therapies and is experienced at undertaking group and individual therapy.


Alex Marshall

Director, Chartered Psychologist, Chartered Member of the British Psychological Society, Health and Care Professions Council, MSc, BSc (Hons) Forensic Psychologist

With ten years of experience, Alex began working in a rehabilitation setting for individuals who suffered neurological conditions following trauma. After completing his MSc in Applied Forensic Psychology with the University of Leicester, he then began working with clients in the community who have experienced mental health needs, including PTSD, anxiety and depression.

Alex completed his Chartership with the British Psychological Society as a Forensic Psychologist, whilst gaining experience of a range of evidence-based methods of assessing individuals’ specific needs for therapeutic intervention, whilst undergoing formal training, including with the official providers of CBT skills with The Association for Psychological Therapies; EMDR with Richman EMDR Training (approved by the EMDR International Association); Attachment Style Interviewing with Child and Family Training and DBT Skills Training with British Isles DBT Training.

Alex has also worked with adults and adolescents, delivering therapeutic interventions for issues including anger management, anxiety, trauma and depression in the community and secure setting on an individual and group basis.

Alex is actively involved in research, having completed a thesis on the effective elements of CBT with adult and adolescent offenders; individual differences of domestic violence perpetrators and the efficacy of assessment tools in formal forensic settings. Alex also has a background of delivering training and workshops for other professionals, including Sexual Risk Management to the Police Service, Court Room Psychology to Social Workers and Neurological Difficulties to those working with adolescents in Forensic Settings.


Both are also available for workshops and training developed for professionals who intend to develop their knowledge base in working with this client group and as part of their continued professional development. Recent notable workshop training has included training members of the Police Service in sex offender risk management and at the University of Sunderland regarding the Psychology of the Court Room and in working with adolescents involved in forensic services. Training and workshops delivered currently aim to enhance skills in specific areas, including: working with offenders; working with individuals with a learning disability or mental illness; working with sex offenders; domestic violence (survivors and perpetrators); expert witness skills; psychological assessment skills and parenting education.

Contact Us Today: 0203 303 3176