This is an important judgment for experts instructed in cases where there is an issue as to whether thrombolysis should have been carried out following a stroke. The court considered a number of relevant publications.

For experts in psychiatry and psychology, it is important as it illustrates how the court tests evidence in cases involving performance validity testing.

Hakmi v East & North Hertfordshire NHS Trust [2025] EWHC 2597 (KB) 

The case was a claim in negligence arising out of complications following bariatric surgery. When he was asked during cross-examination to explain the Bolam test, the Claimant’s expert was not able to demonstrate an accurate understanding of, or ability to explain, the test.