The court found that a highly respected and hugely experienced histopathologist expert witness, who was overburdened with work, had made errors in his examination of the forensic material and closed his mind to possible or probable accidental causes for the injuries identified. 

London Borough of Hammersmith and Fulham v G [2024] EWHC 2200 (Fam) 

Experts, in particular medical experts, are likely to be familiar with experts’ discussions that take place after the exchange of reports. This case referred to a circumstance more commonly, or perhaps seldom otherwise, encountered in the Technology and Construction Court. 

Sue Lightman is a Professor of Ophthalmology and Consultant Ophthalmologist who has been undertaking medicolegal Expert Witness work for over 20 years. Here, she explains how she got involved in expert work, why it keeps her interested, and shares her advice for other medical professionals interested in getting into the Expert Witness world.

This case is about whether the judge erred in finding that Ms Soophia Khan had capacity to defend proceedings for contempt of court. This is an important judgment for any psychiatrist called upon to assess fitness to plead and stand trial in a criminal case or litigation capacity in a civil case; and important also for any psychologist whose evidence may be considered in such a case. It is not just because it compares the tests for fitness to plead and stand trial and litigation capacity; it is a rare illustration of not only how a judge at first instance assesses expert evidence in such a case but also of how the court of appeal analyses the judicial reasoning when such a case is appealed.

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The judge in this patent case found that the claimants’ gene therapy expert had developed, quite possibly guided by lawyers, the understanding that the primary duty of an expert witness is not to say anything that may damage the instructing party’s case if it can be avoided.

In this US case, an expert in fiduciary services used Microsoft’s Copilot to cross-check calculations he used in expert evidence. He was unable to recall the prompts he used, state the sources Copilot relied on, or explain how the tool worked and arrived at its outputs. The judge provided some useful insight into the challenges with using AI in expert evidence. 

Successful Certification candidates receive their certificate from Lord Hodge.

The defendant’s spinal cord injury expert in this case agreed early on in his cross-examination that he had lost all objectivity and independence in the case, while the defendant’s physiotherapy and accommodation experts were criticised by the judge for adopting more partisan approaches in their later evidence.

Hon Mr Justice Trower provides invaluable guidance for Expert Witnesses at the 2024 the Sir Michael Davies lecture.