Main contribution
Provided the principal medical-causation narrative across the indictment, diagnosing air embolism, exogenous insulin and gastric-air administration as mechanisms of harm.
Conflict-map · Trial prosecution experts
Dr Dewi Evans
Lead causation expert at trial
NeonatologyProsecution claim1Court/official
Key claim
Skin-discolouration patterns and gas findings were diagnostic of deliberate harm via intravenous air, insulin administration and air-in-stomach.
Criticism
Methodology rejected by the 14-member Shoo Lee International Expert Panel (Feb 2025). Lee himself states the prosecution misapplied his 1989 paper. A family court judge separately described an unrelated Evans expert report as 'worthless' (2023). Self-referred to Cheshire Police; out of routine NICU practice for over a decade at the time of trial.
Sources
- Court of Appeal judgment, R v Letby [2024] EWCA Crim 748 — the grounds concerning Dr Evans, and the court's reasons for refusing leave
- International Expert Panel summary report, February 2025
- Sir David Davis MP, Commons adjournment debate, 8 January 2025 — quoting the earlier judgment on a report by Dr Evans
Related evidence
Conflict-map topics this expert participates in
- Air embolism
Cross-reference on the main experts conflict-map page.
- Expert-evidence methodology and disclosure
Cross-reference on the main experts conflict-map page.
Full biographical profile
Other experts on the same side
Trial prosecution experts.