Dr Alison Longwill
Clinical Psychologist and Expert Witness PhD, MBA, C.Psychol(Clin), Dip.Clin.Neuro
Dr Alison Longwill is a Chartered Clinical Psychologist with over 40 years’ experience across the NHS, private practice, consultancy, and psycho-legal work. She brings a unique combination of clinical expertise, leadership insight, and proven consultancy skills to organisations and individuals navigating complex challenges.
Alison is a highly experienced Chartered Clinical Psychologist with a career spanning more than four decades in healthcare, consultancy, and expert witness practice. Her background combines:
- Clinical leadership at senior NHS and academic levels
- Expert witness practice across civil, family, and criminal proceedings
- Independent consultancy for government, health, justice, and voluntary sectors
She is known for her ability to handle highly complex cases involving mental health, personality disorders, trauma, substance misuse, and forensic risk.
Alison is a Fellow of the British Psychological Society, a Chartered Scientist, and a registered Clinical Psychologist with the HCPC.
Dr Longwill has provided consultancy and assessments across areas including:
- Mental health & personality disorder
Neuropsychology & cognitive assessment - Mental capacity evaluations
Risk assessments for violence, offending & self-harm - Trauma & PTSD
- Substance misuse & dual diagnosis
- Parenting & custody evaluations
Equality & inclusion in mental health services
Her clients include NHS trusts, local and central government, the legal sector, charities, and community interest companies
Publications & Contributions
Alison has authored and co-authored numerous reports, academic papers, and evaluations for the NHS, government bodies, and professional organisations. Highlights include:
- Research and workforce planning reports for the British Psychological Society
- Policy contributions for the Department of Health
- Academic publications on mental health, personality disorder, substance misuse, and service delivery
- International conference presentations on behavioural approaches to chronic illness and compliance
(A full publication list is available on request.)
Services
Expert Witness & Psycho-Legal Services
Psychological & neuropsychological assessments
Civil, family, and criminal court instructions Single joint expert reporting
Courtroom testimony and case conferencing
Capacity, risk, and forensic assessments
🧠 Clinical & Therapeutic Services
Specialist input for complex mental health presentations
Personality disorder and trauma treatment planning
Clinical supervision and staff development
Consultation for NHS and independent services
Consultancy & Advisory Services
Mental health and social care strategy
Service design and workforce planning
Training and development programmes (e.g., Mental Capacity Act, substance misuse, equality)
Policy and service evaluations for NHS, government, and third-sector organisations
Additional Services
Strategic Planning & Vision Setting
Helping leadership teams define long-term goals, map strategic initiatives, and align resource allocation.
Operational Efficiency & Process Improvement
Reviewing existing workflows, identifying bottlenecks, and implementing leaner, more efficient processes.
Change Management & Organisational Transformation
Guiding organisations through transitions cultural shifts, restructuring, growth phases – ensuring stakeholder buy-in and minimal disruption.
Leadership Development & Coaching
One-to-one or team coaching to strengthen leadership skills, improve communication, decision-making, and drive performance.
Performance Metrics & KPI Development
Establishing meaningful KPIs, dashboards, feedback loops to monitor progress and encourage accountability.
How I Work
Discovery Phase
Deep dive into current situation - interviews, data analysis, diagnostics.
Design & Planning
Co-creating strategy, interventions and roadmaps aligned with your goals.
Implementation
Hands-on support to rollout changes, embed new ways of working.
Review & Adapt
Ongoing monitoring, feedback, course corrections to ensure you achieve the intended outcomes