Recent events in the middle east have reminded us all how quickly dangerous situations can arise. Members may regularly act in conflict zones, or be offered work that requires them to travel to conflict zones to, for example, inspect property damage, etc.  

Before you accept instructions for international work in conflict zones, we recommend you stop and consider these points set out in this article.  

In straying from their original instructions, the expert developed an opinion without all the facts of the case and the second claimant was being coached through his cross-examination using smart glasses.

UAB Business Enterprise & Anor v Oneta Limited & Ors Neutral Citation Number[2026] EWHC 543 (Ch)

The claimant was suing for the unpaid balance of the purchase price of assets used in its high-pressure aluminium diecasting business. The defendants’ expert received instructions that limited the scope of his investigation and analysis. While the judge accorded less weight to his evidence, he did not accept the claimant’s suggestion that the defendants’ expert ought to have either declined the instructions or proffered his opinion on wider valuation issues even in relation to issues outside of his instructions.

Working with expert witnesses... is a new monthly article series. The series takes a look at the role of expert witnesses in a range of sectors from the perspective of the legal and other professionals who work with them. If you are interested in being featured in the series, you can contact us at policy@ewi.org.uk. 

The first article in the series is by Richard Black and Jennifer Fitzmaurice from Eversheds Sutherland on their experience of working with expert witnesses in the construction industry. 

The judge found that the report by the claimants’ forensic accounting expert was not expert evidence because it simply reported what the underlying documents said in a more digestible way, without adding any expert opinion. On the one or two occasions where the expert did offer an opinion, they were not opinions on any accountancy matter.

The task for the expert in this case was enormous. Capacity is issue specific. This means that if the issue is someone’s capacity to conduct legal proceedings, in this case sixteen sets of proceedings, the expert has to consider each set of proceedings. The person may have the capacity to conduct some and not others.

Johnston v Financial Ombudsman Service [2025] EWCA Civ 551

It is not easy to appreciate the significance of this judgment for experts in general without reading the summary so the ‘Commentary’ is at the end. The neuropsychological test results are perhaps not of particular interest to psychologists and psychiatrists at this stage in the proceedings but may become so if the case does not settle and it goes to trial. 

Perrin v Walsh (Rev1) [2025] EWHC 2536 (KB)

The judgement from The Honourable Mr Justice Trower asserts that Expert Witnesses have a duty to disclose previous criticisms of their evidence in judgments.

In the 14th episode of the Expert Matters Podcast, Simon and EWI's Marketing and Events Manger, Heather George, reflect on their highlights from EWI's 2025 Annual Conference which was held on 20 June. The Conference featured a great line-up of panels and speakers, with keynote speeches from Lady Rose, Justice of the Supreme Court, and Lord Justice Birrs, the Deputy Head of Civil Justice. A wide range of lawyers, judges and expert witnesses joined the panel sessions, and EWI member Dr Richard Marshall provided an insightful session on AI and the Expert Witness. You can also check out our 'What's going on at EWI' and 'Newsreel' segments to keep up-to-date on the latest developments in the world of expert witnesses and expert evidence. 

Few reported cases assist as to expert evidence in cases of harassment and on the issue of injury to feelings as distinct from psychiatric injury. This summary should be read for this reason. It illustrates how the expert should respond to less than neutral instructions. It illustrates how cardiological evidence was analysed in order for the court to conclude that the defendant’s course of conduct had caused a myocardial infarction. It also reveals the charitable aspect of pro bono legal practice.   

Wei v Long [2025] EWHC 912 (KB)