We have just published our new Guide on Responding to Written Questions. Informed by the knowledge and experience of the EWI Editorial and Training Committee, our comprehensive guide is useful for both new and experienced experts.

In January's episode of the Expert Matters Podcast, we discuss responding to written questions. We look at the rules and regulations, discuss a couple of recent cases, and offer some advice, before hearing the thoughts of some of the members of our Editorial Committee. We also discuss our new Guidance which is linked below. As always, you can also listen to 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. 

The Claimant, on her solicitor’s advice, covertly recorded her testing by the Defendant’s neuropsychological expert. Weighing up the factors in favour of admitting the evidence and against admitting it, the judge considered that they were very finely balanced and quite difficult and that he may well have ruled that the evidence could not be relied on, if the Defendant’s expert had not himself inadvertently recorded the testing.

The Claimants brought an action against the Defendant, the Secretary of State for Education, for negligence and misfeasance in public office, relating to the actions of the Skills Funding Agency (‘SFA’), for which the Defendant is responsible. The Claimants alleged that the acts of SFA prevented them from selling their business for around £27 million, plus a lost chance of converting around £10 million in rollover loan notes.

The Defendant issued an application to revoke the Claimants’ permission to rely upon their forensic accounting expert evidence, because it had become clear that one of the Claimants, who was a trained accountant, had had significant secret involvement in the preparation of the expert’s report and the Joint Statement.

The claimant alleged that the vibrating tools he used while employed by the defendant caused Hand-Arm Vibration Syndrome. The judge criticised one of the medical experts for looking for answers that supported his strong views on the subject, rather than obtaining a reliable history from the claimant.

Although this is an orthopaedic case and in which given its preliminary nature the expert evidence was not tested, it is helpful for experts in general as well as orthopaedic experts. It sets out the law on consent as established in not only Montgomery but also in McCullough. It touches on orthopaedic experts giving evidence in cases outside their own subspecialty.

Butler v Ward [2025] EWHC 877 (KB)

The court noted that the jointly instructed expert demonstrated a clear lack of understanding of both CPR 35 and the duties owed to the court by an expert in allowing someone else in this firm to answer CPR 35 questions on his behalf. His report was also entirely equivocal on the key issues and therefore offered little or no assistance to the court.

Kate Rodgers v Laural Brookes [2025] EWCC 31

This was a significant and well reported patent case which was determined in the Intellectual Property List within the High Court last autumn.   

The technical aspects of the case required significant expert input from the panel involved.  The cross-examinations performed by leading Counsel for the parties were lengthy and complicated.  This led to confusion over what evidence was given when the transcripts were re-visited on subsequent trial days. The case shows how consideration should be given to experts who are being cross-examined so not to overload them with questions and information on the stand.

The complexities of this case required both parties to engage expert quantity surveyors.  Both sides approached their instructions to their expert from different angles which caused difficulties at trial.  This explained why the valuations were worlds apart (or as the judge commented they had a “manifestly excessive difference”) and needed some careful scrutiny and assessment by the judge. Whilst the approach of examining both valuations is very case specific, there are some fundamental tests which can be taken away.  An objective test was used several times as a benchmark looking at the scope of works that a ‘reasonable owner’ or ‘purchaser’ would require.  The key legal issue of “proportionality” was also visited frequently throughout the assessment of valuations. 

Iya Patarkatsishvili & Anor v William Woodward-Fisher [2025] EWHC 265 (Ch)

In the 8th episode of the Expert Matters Podcast, we discuss re-evaluating your opinion. We look at possible reasons why you might wish to re-evaluate your opinion and the stages in the proceedings where re-evaluation is most likely to occur, before hearing from three senior judges on how re-evaluating your opinion can sometimes be positive for your expert evidence, but may also be disastrous.