Expert Witness Psychologist & Medico-Legal Services in London

Expert Witness London we provide high-quality, independent psychological and medico-legal assessments across Greater London and England. Led by an experienced chartered psychologist and unregistered barrister, our services support solicitors, courts, tribunals, insurers, and employers with robust evaluations grounded in clinical evidence and legal acumen. All assessments are conducted in accordance with HCPC, BPS, and Family and Criminal Procedure Rules.

Criminal & Forensic Psychology

Expert forensic psychologist reports for criminal proceedings across London and England.

We offer a comprehensive range of criminal and forensic psychology expert witness services, supporting Crown Court, Magistrates’ Court and Youth Court proceedings. Our reports are prepared in line with Part 19 of the Criminal Procedure Rules.

  • Fitness to plead: Evaluating capacity to stand trial under R v Pritchard (1836) criteria.
  • Criminal responsibility: Assessments under M’Naghten Rules and relevant case law.
  • Risk assessment: Evaluations using HCR-20, RSVP, SVR-20 and similar tools.
  • Suggestibility and compliance: Analysis using Gudjonsson Suggestibility Scales.
  • Parole suitability: Reports for parole hearings focused on risk, rehabilitation and reintegration.

Family Court Assessments

Independent psychological assessments for the Family Court under Section 7 and Section 37 proceedings.

We provide clear, evidence-based reports for public and private family law proceedings, tailored to inform judicial decisions regarding child welfare, care planning, and contact arrangements.

  • Parenting capacity: Evaluating emotional availability, insight and protection capability.
  • Attachment assessments: Using tools such as the Story Stem Assessment Profile.
  • Domestic abuse and coercive control: Trauma-informed evaluations and risk analysis.
  • Relocation disputes: Psychological assessments for proposed relocations, guided by Re C principles.
  • Child contact disputes: Assessing child wellbeing and parent–child dynamics.

Personal Injury & Neuropsychology

Expert psychological and neuropsychological reports for civil litigation, including catastrophic injury and trauma.

Our reports support claims in personal injury, clinical negligence, and insurance litigation. Assessments include psychometric testing, structured clinical interviews and collateral data.

  • Traumatic Brain Injury (TBI): Using WAIS-IV, WMS-IV, D-KEFS and other standardised tools.
  • Post-Traumatic Stress Disorder (PTSD): Diagnosis with CAPS-5 and IES-R, based on DSM-5-TR and ICD-11.
  • Chronic pain and somatisation: Evaluation of persistent symptoms and psychological contributors.
  • Functional Neurological Disorder (FND): Multidisciplinary assessment of non-organic symptoms.
  • Mental and litigation capacity: Reports aligned with the Mental Capacity Act 2005 and CPR Part 21.

Employment & Occupational Psychology

Occupational psychological assessments for Employment Tribunals, HR decisions and workplace adjustments.

We offer independent expert reports for workplace disputes, stress claims, neurodiversity adjustments and capacity issues, grounded in clinical and employment law expertise.

  • Discrimination and Equality Act claims: Evaluating psychological harm from discrimination or harassment.
  • Workplace stress and burnout: Clinical assessment and causation analysis.
  • Capability and fitness to work: Structured evaluations of psychological readiness for employment.
  • Neurodiversity and reasonable adjustments: Workplace assessments for autism, ADHD and learning difficulties.
  • Return to work planning: Recommendations for phased reintegration and employer accommodations.

Why Choose Expert Witness London?

  • Over 30 years of combined clinical, forensic and legal expertise.
  • Multi-disciplinary qualifications: Chartered Psychologist, Barrister and Expert Witness.
  • Proven track record in high-profile litigation across criminal, family, civil and employment courts.
  • Fast turnaround, thorough reporting and court attendance across London and England.
  • HCPC registered, BPS Chartered, and fully compliant with CPR, FPR and CrimPR standards.

Contact Expert Witness London

Serving clients across Greater London and England.

Email: [email protected] | Phone: 020 82000078

Website: www.expertwitnesslondon.co.uk

Independent, evidence-based, and legally compliant expert witness psychological assessments.

Rated excellent
* * * * * 5/5

Expert witnesses what are they? An expert witness is a person who has specialised knowledge in a specific field allowing them to present their opinion about the facts of a case during legal proceedings. What our expert witnesses do: our expert witnesses can assist you in court proceedings ranging from criminal cases to employment cases. Our expert witnesses and psychologists complete medico-legal reports (involving both medical and legal aspects) on mental health and neuropsychological injury for criminal, employment, personal injury, family, immigration and educational cases.



The best psychologists in London, Birmingham, Manchester, Nottingham and Leicester. Home visits are available, and reports can be prepared within seven days.


Neuropsychology expert medico-legal assessments are prepared for personal injury claims including: Complex brain and spinal injury cases, where compensation is required for road traffic accident claims and other neuropsychological injury claims. These often include claims for post-traumatic stress disorder (PTSD), anxiety and depression. In criminal law, our medicolegal psychologists frequently assess witness evidence, fitness to plead, criminal responsibility, special measures, ability to serve a custodial sentence and suitability for parole. Psychologists and psychiatrists are different, while they both trained to assess people the assessment methods they use may differ with psychologists tending to use more objective tests.


Expert Witness Psychologist Assessments - we provide:

Assessments for Employment: Particularly in cases where there has been unfair dismissal or discrimination is claimed.

Occupational Health Assessments: Occupational health reports to accommodate employees with health conditions or disabilities appropriately. We also provide personality testing and sickness absence reduction assessments.

Risk Assessments: Our psychologists carry out risk assessments and advise on work-related stress claims. This assessments also include offender risk assessments, and risk assessments in the context of parenting capacity.

Mental Capacity assessments: Mental health capacity assessments, capacity to conduct proceedings, capacity to make financial decisions, and Court of Protection assessments.

Our medicolegal psychologists work is equally split between defendant and claimant and clients include central government, CAFCASS, HMCTS, CPS, local authorities, insurers, financial services and ‘magic circle’ legal firms.

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Special educational needs assessments are carried out to diagnose learning disability. Reports can help individuals obtain extra time in examinations, additional tuition, and free equipment in education. Our reports are also used to support an applicaton for special measures in court. Our psychologist’s reports are prepared to the official standards required by the Department for Education for Disabled Student Allowance.

The assessment process for dyslexia and dyspraxia testing includes a 1 to 2 hour preparatory assessment and a comprehensive face-to-face diagnostic assessment lasting between 3 to 5 hours. At the end of the process, you will receive a 20-page diagnostic report, assessing your needs and giving recommendations for support. You will also receive a 15-page report on reading ability. Adults also receive a 10-page report on intelligence (IQ).

In employment, reports also meet the standard required by the Department of Work and Pensions for Access to Work. We carry out Workplace Needs Assessments and coaching by qualified, specialist teachers. To complete a free dyslexia screening test and book an initial free telephone consultation please click the relevant link:

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Expert Witness Psychologist Booking Packs, Terms & CV


Dyslexia, ADHD, Autism & Mental Health Tests & Booking Packs


Learn More About the Work of Expert Witnesses and Psychologists


Find A Psychologist Near Me

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Advanced Assessments - Psychologists for Legal, Education and Employment
Open Now - 24 hour Service - Open Weekends
We work globally

UK: +44 208 200 0078 Emergencies: +44 7071 200 344

Advanced Assessments - Expert Witnesses & Psychologists, 4th Floor, 49 St. James's Street, London, SW1A 1JT
Advanced Assessments Ltd, 180 Piccadilly, London, W1J 9ER
Also at: Westhill House, Highgate Consulting Rooms, 9 Swain's Lane, London N6 6QS
Please do not attend our office if you do not have an appointment


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