11 August Case Updates Various Claimants v Mercedes-Benz Group and Others [2026] EWHC 1753 (KB) 06. Rules and Regulations, 11. Report Writing, 14. Changing your opinion, 08. Working with Instructing Parties, 15. Giving Oral Evidence, Prohibited Defeat Devices, Pan NOx The trial dealt with liability issues relating to the alleged use of prohibited defeat devices. That is, devices which reduce the effectiveness of a vehicle’s emission control system for which there is no excuse or applicable exception. The judge criticised three of the expert witnesses for not complying with their duties under Part 35, and praised others.
4 August Case Updates Downes v Ostrowicka 118DC085 Dentistry, 16. Criticism and Complaints, 10. Records Assessments and Site Visits, 06. Rules and Regulations, 11. Report Writing, 14. Changing your opinion, 13. Experts Discussions and Joint Statements, 15. Giving Oral Evidence, Bolam Test The Claimant brought a claim in negligence against the Defendant, a dental practitioner, about the Defendant’s alleged failure to provide her with adequate advice about the risks and benefits of the treatment options available to her. The Claimant’s expert lacked understanding of the Bolam test, had not considered the dental notes, and was forced to make significant concessions in the joint report.
28 July Case Updates Trinsic Collagen Limited v Procoll Limited [2026] EWHC 1793 (Ch) 06. Rules and Regulations, 11. Report Writing, 08. Working with Instructing Parties, 13. Experts Discussions and Joint Statements, 15. Giving Oral Evidence The Claimant alleged that the Defendant was in breach of the agreement between the parties for the supply of single alpha chain collagen. The judge was critical of the Claimant’s expert witnesses, in particular noting that he would have had to direct further accounting expert evidence be produced, if the evidence had been required.
13 July Case Updates X and Y (Care Proceedings: Fact Finding: Death of a Child: Expert Evidence), Re [2025] EWFC 132 family court, 16. Criticism and Complaints, 06. Rules and Regulations, 11. Report Writing, 14. Changing your opinion, 13. Experts Discussions and Joint Statements, 15. Giving Oral Evidence, Neurologist This was a fact finding hearing into the death of a young child. The Judge found that the neurologist expert witness failed to discharge his duties as an expert witness to the family court.
30 June Case Updates Regal BA Limited v Jun Zhang [2026] EWHC 1446 (Ch) Chartered Building Surveyor, 10. Records Assessments and Site Visits, Property valuation, 11. Report Writing, 08. Working with Instructing Parties, 15. Giving Oral Evidence The claimant sought damages amounting to the difference between the £16.9 million contract sale price from a failed house sale and the sum ultimately obtained for the property of £10.1 million, less that £2.5 million forfeited deposit. After finding the expert evidence compromised by the information provided to the experts, the judge set out a better approach to expert evidence in property valuation.
16 June Case Updates Ill-health and sentencing Sentencing, 10. Records Assessments and Site Visits, Northern Ireland, 15. Giving Oral Evidence, Stroke, hypertension After summarising the case law, the court in this case stated that there is a high threshold to be reached in order for ill health or physical disability to impinge upon the court's approach to assessing the appropriate method of sentencing an offender. This is not to say that ill health or disability will never be taken into consideration as is indicated by these terms: ‘not generally’, ‘not automatically’, ‘can take account’, ‘may enable’, ‘not in itself’, ‘it may be permissible’, ‘in appropriate cases’, ‘permissible to have regard’ and ‘purely on the basis’. Lavery, R v (Sentencing Remarks) [2026] NICC 5
12 June Case Updates Take care not to conflate your role as a contractor with your duties as an expert witness 10. Records Assessments and Site Visits, Structural Engineering, 06. Rules and Regulations, 11. Report Writing, 15. Giving Oral Evidence The parties disagreed on the extent of the repairs required to the joists, and the manner in which the repairs should be effected, following the collapse of part of the ceiling in a building owned by the Claimant and partly leased by the Defendant. The Judge found that the Defendant’s expert’s failure to engage with all the available evidence and to seek to undertake a fuller examination of the joists meant that his evidence did not fully address the issues before the court.
29 May Case Updates Experts who rise above the fray and fully discharge their duties to assist the Court 16. Criticism and Complaints, 06. Rules and Regulations, 11. Report Writing, 15. Giving Oral Evidence The case concerned around 40 studio recordings of performances which were given by the members of the Jimi Hendrix Experience. The expert witnesses in New York law were commended by the judge on their written and oral evidence. The judge was not persuaded by any of the criticisms of the claimants' expert made by the defendant. Noel Redding Estate Ltd & Anor v Sony Music Entertainment UK Limited [2026] EWHC 983 (Ch)
26 May Case Updates Praise for experts gives insight into what makes oral evidence credible 15. Giving Oral Evidence Despite attacks on the expert’s credibility, the judge provided praise for all three experts in the case of Gillian Dakin v South Tees Hospitals NHS Foundation Trust.
22 May Case Updates Car-Wizard Limited v Vixen Surface Treatments Limited [2026] EWHC 685 (Ch) 07. Receiving Instructions, 16. Criticism and Complaints, Accountancy, 11. Report Writing, 15. Giving Oral Evidence The claimant asserted misrepresentation and breach of a collateral contract by the defendant in respect of the supply of a vertical diamond cutting lathe for the claimant’s car wheel repair business. The judge found that the accountancy reports were not expert evidence but simply aids to understanding the details in a complex case.