Medicolegal services
Mr. Marcus H. Ornstein FRCS
Medico-Legal expert witness with over 40 years of surgical experience


Mr. Marcus H. Ornstein
Experience you can trust
Welcome to my website. I am a retired Consultant General Surgeon and previously an Honorary Senior Lecturer. I have a special interest in breast disease, hernia repair, laparoscopic surgery and trauma. I now focus exclusively on providing high-quality medico-legal reports for solicitors, medical agencies and legal services across the UK and Ireland.
Each case I take on is approached with careful attention to detail and decades of clinical insight. Whether you’re a solicitor seeking a trusted expert witness or a legal agency requiring fast, clear reporting, I bring professionalism, clarity, and experience to every report.
Clear, thorough, and trusted opinions backed by over 40 years of experience
Expert medico legal reports
Clinical negligence reports
Expert witness reports for alleged surgical errors, misdiagnosis, or poor post-operative outcomes. Clear, detailed, and based on over four decades of surgical insight.
Personal injury assessments
Reports for road traffic incidents, workplace accidents and including soft tissue injury, hernia and abdominal trauma.
Second opinions
Independent surgical and diagnostic opinion in complex or disputed clinical matters. Always objective, reasoned, and thoroughly explained.
Joint expert reports
Experienced in preparing court-ready joint statements for cases requiring dual-expert collaboration. Concise, balanced, and compliant with CPR Part 35.
Case reviews for solicitors
Early case screening and advisory reviews. Ideal for determining merit before instructing full medico-legal opinion or pursuing litigation.
Fast-track instructions
When deadlines are tight, I am able to offer a rapid turnaround—appointments within two weeks, reports within two more.