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.

The claimants objected to the wording of a question for the expert witnesses in marine engineering because it invited the experts to express an opinion on a matter of fact which is ultimately for the court.

Range of Opinion is the focus of the 5th episode of the Expert Matters Podcast. We catch up with Colin Holburn, Chair of the EWI Membership Committee, to find out about the sorts of issues his committee sees in the expert reports submitted to them, before hearing advice from Colin and Lady Justice Simler on how to ensure you meet the requirement to provide a range of opinion. 

Many expert witnesses, primarily in medico-legal work, use a third-party organisation to help them in their practice. If you use an organisation which invoices the instructing solicitor for your services, you should be aware of legal developments which might affect the information that organisation needs to provide, in order to recover their bill as part of the legal costs recovered at the end of the case.