Expert Witness Journal Issue 64 December 2025 - Flipbook - Page 44
Dr Theo Polychronakis
Consultant in Paediatrics and Paediatric Respiratory medicine
Mr Simon Clarke
Medicinae Doctor (M.D.) Aristotle University of Thessaloniki, Greece, Master of
Science in Allergy (Imperial College, London)
Consultant Paediatric Surgeon
BSc. MBBS. FRCS(Eng.) FRCS(Paed Surg)
A highly experienced Consultant in Paediatrics and Paediatric Respiratory
Medicine at Addenbrooke’s Hospital.
Mr Simon Clarke is a Consultant Paediatric Surgeon, at the Portland and Cromwell
hospitals.
Key clinical leadership roles include service lead for Paediatric Respiratory
Medicine in Cambridge UK.
Mr Clarke's training took place in London at the globally renowned Great Ormond
Street Hospital (GOSH) as well as at Chelsea and St George's. He was also given the
opportunity to train in Oxford and Hong Kong, giving him an even broader knowledge
of surgical procedures such as minimal access surgery.
Expertise spans asthma and preschool wheeze, sleep-disordered
breathing, long-term ventilation, cystic fibrosis, and complex airway
management, underpinned by extensive specialist training at leading
centres such as Great Ormond Street and the Royal Brompton Hospital.
With over 35 years of experience with 21 as a consultant at Chelsea & Westminster
Hospital, London. He provides first-class surgical expertise for a wide range of
conditions, including hernias (umbilical and inguinal), undescended testicles,
gastrointestinal disorders such as gastro-oesophegal reflux disease (GERD) and
hydrocele.
Actively involved in clinical governance, service innovation, and
research, with multiple publications and presentations at international
conferences. Leads a regional sleep service and has pioneered
integrated, multidisciplinary models of care and novel service
pathways to improveoutcomes for children with chronic
respiratory conditions.
He is highly skilled in surgical procedures such as minimal access surgery (keyhole
surgery), circumcision, neonatal surgery, emergency children’s surgery, appendicitis,
laparoscopy and endoscopy. In fact, from 2018 to present, he has been the president of
the British Association of Paediatric Endoscopic Surgeons (BAPES).
Mr Clarke undertakes cases mostly within the medico-legal report field. He has acted
on behalf of numerous medicolegal clients on a wide range of cases across England and
Northern Ireland.Undertaking between 1-3 cases per year with a 70:30 split ratio of
Plaintiff : Defendant.
Contact: Theo Polychronakis
Email: info@cpmla.co.uk
Website: https://www.drpolychronakis.co.uk
Alternate Website: https://www.cpmla.co.uk
Area of work: Cambridge and Nationwide
Mr Clarke has completed 16 medico-legal reports between 2017-2024. He has also
assisted the General Medical Council in a fitness to practice review in 2020 and, has
attended two meetings of Liability Expert prior to possible court proceedings.
He also participates in the training of future surgeons as an honorary senior lecturer at
Imperial College London. He is widely published and undertakes research projects.
Contact: Mario Polo
Tel: 0203 006 5920 - Mobile: 07931 177 787
Email: contact@londonpaediatricsurgeon.com
Alternate Email: sclarke3005@me.com
Website: https://www.londonpaediatricsurgeon.com
Dr Stephen Warriner
Consultant Paediatrician –
Specialist Interest in Paediatric
Neurology & Epilepsy
Mr. Tom Crompton
Children's Orthopaedic
Consultant
MBChB MRCPCH
Stephen is a Consultant General Paediatrician with nearly 30 years' experience in
paediatric medicine, specialising in paediatric neurology and epilepsy. He
provides independent expert witness reports in cases involving general paediatric
conditions, paediatric neurological conditions, epilepsy management, diagnostic
delay, and standards of care.
Mr. Thomas Crompton is a children’s orthopaedic consultant at The Royal
Alexandra Children’s hospital in Brighton. Thomas’s interests span the
range of children’s orthopaedic conditions, including neuromuscular
conditions such as cerebral palsy. He also has a special interest in
children’s trauma. He provides children’s orthopaedic services across
Brighton and London.
Areas of Medico-Legal Expertise
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Paediatric neurology and epilepsy (diagnosis, management, follow-up)
Febrile seizures, status epilepticus, complex epilepsy syndromes
Developmental delay and neuro-disability
Neurological consequences of perinatal injury or hypoxia
Standards of care in paediatric neurology
Medication errors and seizure management protocols
General paediatric conditions including acute and chronic illnesses, growth
and development concerns, and common childhood illnesses
As an orthopaedic consultant, Mr. Crompton has experience with
preparing clinical negligence and medical reports for a wide range of
medico-legal cases.
He can write medico-legal reports for all children’s orthopaedic
conditions, including trauma. He can also produce expert witness reports
for clinical negligence, breach of duty, liability, and causation for
children’s orthopaedics, whether elective or trauma.
Medico-Legal Practice
Approximately 50 reports per annum.
I have acted as a medico-legal expert previously, instructed by both claimant and
defendant solicitors.
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Defendant: Claimant split approximately 20:80
Experience giving oral evidence in paediatric safeguarding cases.
Reports prepared in compliance with CPR Part 35 and Family Procedure Rules
Part 25.
Undertake condition and prognosis, breach of duty, and causation reports.
Mr. Crompton’s specialities include:
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Turnaround time: 4 weeks from receipt of full papers.
Report types: Desktop reports, full assessments, joint reports.
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Email: stephen.warriner@hampshirepaediatricians.co.uk
Alternate Email: stevewarriner@me.com
Children’s trauma and fractures: Mr. Crompton runs the children’s
trauma service in Brighton, which is one of the busiest children’s
trauma units in the UK.
Opinions on all children’s trauma including negligence work.
Childhood hip conditions: Including DDH, SUFE and Perthes disease.
Email: admin@childrensorthopaedics.co.uk
Website: www.childrensorthopaedics.co.uk
Telephone: 0770 305 3384 | Area of work: Portsmouth, UK
EXPERT WITNESS JOURNAL
41
DECEMBER/JANUARY 2025-2026
