Medical Expert Witnesses UK
McCollum Consultants is a specialist chamber of independent medical expert witnesses, providing access to recognised specialists for solicitors, barristers, insurers and other instructing parties.
Our medical, surgical and nursing experts prepare independent medico-legal reports and provide expert evidence. They can assist with clinical negligence, personal injury, criminal, coronial, sporting and insurance matters across the UK and internationally.

Founded in 2017 by clinicians with first-hand medico-legal experience, McCollum Consultants brings together established medical, surgical and nursing medico-legal expert witnesses with recognised clinical expertise and professional standing. Our experts provide clear, authoritative and independent expert opinion. For each instruction, we nominate appropriately qualified specialists with expertise relevant to the matters in question. Every expert remains independent and solely responsible for their professional opinion, supported throughout by our responsive chambers team.
Medical Expert Witness Services
Medical Expert Witness Specialisms
What types of medical expert witnesses are available?
McCollum Consultants provides access to independent medical expert witnesses across a broad range of medical, surgical and nursing specialities.
Who can instruct our medical expert witnesses?
Our experts provide independent medico-legal opinion for solicitors, barristers, insurers and other instructing parties throughout the UK.
What does a medical expert witness provide?
Experts combine current clinical practice with medico-legal expertise to provide clear, evidence-based reports and expert evidence relevant to the issues in dispute.
Clinical Negligence Expert Witnesses
What does a clinical negligence expert witness assess?
A clinical negligence expert witness can provide independent medical opinion on breach of duty, causation, condition and prognosis.
Which specialists provide clinical negligence expert evidence?
Depending on the clinical issues involved, we can provide access to experts across a broad range of medical, surgical and nursing specialities.
When can clinical negligence expert evidence be used?
Our experts can provide medico-legal reports and expert evidence for clinical negligence claims, mediation, arbitration and court proceedings.
Personal Injury Expert Witnesses
What does a personal injury medical expert assess?
A personal injury expert can provide independent opinion on injury, causation, condition, prognosis and future treatment needs.
Which medical experts can provide personal injury reports?
We provide medical, surgical and nursing specialists across a broad range of disciplines, depending on the injuries and evidence involved.
Who uses personal injury expert evidence?
Our experts provide evidence-based medico-legal reports for solicitors, insurers and the courts in personal injury claims.
Criminal & Coronial Expert Witnesses
What can a medical expert assess in criminal proceedings?
A medical expert can provide independent opinion on clinical findings, injuries, causation, treatment and other medical issues relevant to criminal proceedings.
Do you provide experts for coroners and inquests?
Yes. We can identify appropriately qualified medical, surgical and nursing experts for coronial matters and inquests.
Who can instruct our criminal or coronial medical expert?
Our experts assist solicitors, barristers, coroners and investigative authorities across the UK.
Sports Injury Expert Witnesses
What does a sports injury expert witness assess?
A sports injury expert witness provides independent medical opinion on injury, causation, treatment, prognosis and long-term consequence
Which specialists can provide sports injury expert evidence?
We provide access to medical and surgical specialists with expertise relevant to sports injuries, including musculoskeletal injuries and their treatment and rehabilitation.
When might a sports injury expert witness be required?
Expert evidence may be required in personal injury claims, sports-related disputes, regulatory proceedings and other legal matters involving sports injuries.
Nursing Expert Witnesses
What does a nursing expert witness assess?
A nursing expert witness provides independent opinion on nursing standards, quality of care, clinical practice and alleged negligence.
Who can provide nursing expert evidence?
Our nursing experts include experienced senior nurses and advanced practitioners who can provide evidence-based medico-legal opinion within their areas of expertise.
When might a nursing expert witness be required?
For example, nursing expert evidence may be required in clinical negligence claims, personal injury cases and other legal matters where nursing care or clinical practice is in question.
Choosing the Right Medical Expert Witness
How do I choose the right medical expert witness?
The right expert will depend on the clinical issues in the case and the specialist expertise required to provide an independent opinion.
What should I look for in a medical expert witness?
Relevant specialist expertise, clinical experience and current practice are important considerations when selecting an expert. The expert should also have appropriate experience of the issues they are being asked to address.
Does the expert need to be currently practising?
Current clinical practice can be particularly important when an expert is asked to provide an opinion on standards of care or specialist clinical issues.
Can you help me find the right medical expert?
Yes. McCollum Consultants can discuss your requirements and identify appropriately qualified medical, surgical or nursing experts for clinical negligence, personal injury, criminal, coronial and other medico-legal matters.
Instructing a Medical Expert Witness
How do I instruct a medical expert witness?
Provide the key party details and a brief outline of the case. We will complete a conflict check and identify an appropriately qualified expert from the relevant medical, surgical or nursing speciality.
What information is needed to instruct an expert witness?
We typically need details of the parties involved, the clinical issues and the type of expert evidence required. Relevant medical records and other case materials can then be provided for the expert’s review.
Can I speak to the expert before instruction?
Where appropriate, we can arrange a preliminary call with the expert before formal instruction to discuss their suitability and the scope of the case.
How are medical expert witness fees calculated?
Experts may work at an hourly rate or provide a fixed fee, depending on the volume and complexity of the medical records and other material requiring review.
Why Instruct McCollum Consultants?
Specialist Medico-Legal Expert Witnesses
We work with established medical, surgical, nursing and allied healthcare experts across a broad range of specialties.
Importantly, our expert witnesses combine current clinical practice with specialist knowledge and medico-legal experience. They provide independent opinion in clinical negligence, personal injury and other medico-legal matters.
The Right Medical Expert for Every Instruction
Because every instruction is different, we consider each case individually. Experts are nominated according to the clinical issues involved and the specialist expertise required.
We consider current clinical practice, subspecialist expertise and relevant medico-legal experience to identify an appropriately qualified medical expert witness.
Medico-Legal Training
Our experts are supported through dedicated medico-legal training and continuing professional development. As a result, they understand the responsibilities and standards expected of an expert witness.
This includes preparing clear, well-reasoned reports, maintaining independence and objectivity, and understanding their overriding duty to the court.
A Personal, Responsive Medico-Legal Service
We provide a personal and responsive service, taking the time to understand the requirements of each instruction. From the outset, our team works closely with instructing parties to identify an appropriately qualified expert.
Throughout the process, we maintain clear communication and provide ongoing support to help each instruction progress efficiently and professionally.

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