Dr Siddaway is a highly experienced HCPC-regulated Consultant Clinical Psychologist and medico-legal expert specialising in psychological trauma, 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 has two decades of clinical experience and has specialised in working with trauma/adversity-related mental health problems/disorders, adjustment and the psychological aspects of chronic pain, and clinical risk (risk to self, risk to others, risk from others) since 2012. He has worked as a Clinical Psychologist in an Occupational Health service, and in services for traumatically bereaved children, adult amputees, veterans, and with a wide range of trauma-exposed populations in the largest psychological trauma service in the UK. He holds a professional doctorate in Clinical Psychology and a PhD that focused on risk and assessment/ measurement (psychometrics), and he has extensive training in different trauma-focused psychological therapies and therapies for individuals with complex trauma backgrounds. His doctorates, extensive experience and training, and ongoing Continuing Professional Development mean that he brings a depth and breadth of knowledge of psychological science and evidence-based practice to clinical practice, expert witness work, and research. He offers consultation, teaching, training, and supervision to other mental health professionals.

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​​Dr Siddaway primarily receives instructions in relation to Personal Injury and Clinical Negligence cases; occasionally undertaking Immigration, Employment, and Child/Family assessments. He prepares around 100 expert reports per year (65% claimant, 25% defendant, 10% joint), covering fast-track proceedings and intermediate/multi-track proceedings in relation to catastrophic injury/events. He is committed to impartiality and to providing balanced, evidence-based, accessible reports tailored to each case’s needs. His assessments adopt a forensic approach, involving meticulous evaluation and triangulation of objective and subjective evidence. He is well-versed in the intricacies of medico-legal assessments and known for delivering clear, robust, high-quality reports and oral evidence to assist the court effectively, with complete adherence to Part 35 requirements. 

 

He 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.

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​Dr Siddaway's Expert Witness CV