Dr Siddaway is a highly experienced HCPC-regulated Consultant Clinical Psychologist and medico-legal expert specialising in trauma, adversity, stress, medical psychology (e.g., chronic pain), and clinical risk (to self or others, risk from others). He combines NHS clinical practice with expert witness work and conducting and supervising research and works across the lifespan – with children, adolescents, and adults. He is Registered with the Health and Care Professions Council (HCPC); Honorary Senior Clinical Lecturer at the University of Glasgow; Associate Fellow of the British Psychological Society (BPS); Chair of the BPS’ Expert Witness Advisory Group, which advises on professional standards and good practice for psychologists working as expert witnesses; and listed on the BPS Register of Expert Witnesses, which he helped establish.

 

Dr Siddaway is primarily instructed in personal injury (fast track, intermediate, and multi-track proceedings) and clinical negligence cases, providing expert opinion on psychological injury, condition, causation, prognosis, functional impact, disability, and treatment recommendations. He also accepts instructions in immigration, employment, and child/family proceedings. He has extensive experience in medico-legal assessment and provides clear, accessible reports and oral evidence in accordance with CPR Part 35. His professional opinions are impartial, balanced, and evidence-based. Assessments adopt a structured, forensic approach, involving detailed clinical interview, mental state examination, behavioural observation, review of relevant records and collateral information, and psychometric and symptom validity testing where appropriate. Opinions are formed based on the totality of available information, with careful consideration of internal and external consistency, response bias, alternative explanations, and clinical plausibility. 

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Expert witness areas of expertise:

• Personal Injury & Clinical negligence: Psychological problems/mental disorders following stress, trauma, and adversity, including accidents, injury, medical errors, breach of duty, data breaches, abuse, crime, discrimination, and military experience.

• Employment and employment tribunals: Work-related stress and injury and fitness to work; psychological effects of bullying, harassment, discrimination, unfair dismissal, employment litigation, and tribunal processes.

• Immigration: Victims of torture and abuse, including human trafficking, deportation and its impact on couples and families, risk assessment.

• Risk assessment and management: Suicide risk, sexual recidivism, sexually harmful behaviour, domestic abuse, intimate partner violence. Theory and evidence-based risk assessment, formulation, and management, including capacity and motivation to change, protective factors, recommendations for management/treatment.

• Child/Family: Mental health of children and parents, parenting competence, family functioning, sibling and parent relationships, complex systemic dynamics, risk to children, residency, contact, ability to make and sustain changes, parental alienation.

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​Please get in touch to discuss instructions and timescales. Dr Siddaway is very happy to informally discuss potential cases and can assess and report with tight turnaround times if needed. References and sample reports are available on request.