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September 2026: Thirlwall Inquiry final report published (15 September) — a complete failure to protect babies, 17 recommendations, and no finding on the guilt of Lucy Letby or her convictions · CCRC review continues · inquests relisted to 2027 · Shoo Lee Panel: no medical evidence of deliberate harm.

Lucy Letby Facts

Conflict-map · Post-conviction medical experts

Helen Shannon

Insulin physiological-modelling collaborator

Physiological modellingScientific literature2Expert/professional

Main contribution

Chemical engineer and independent consultant. With Prof. Geoff Chase, co-authored a peer-reviewed paper in the Journal of Diabetes, Science and Technology and a case-specific bioengineering analysis of the insulin evidence against Letby for Babies 6 and 12, circulated alongside the International Expert Panel's material submitted to Letby's legal team.

Key claim

Shannon and Chase's analysis states that the insulin dose required under the prosecution's theory of administration was far higher than the alleged method could deliver, putting the shortfall for Baby L at 20 to 80 times, and that C-peptide and potassium levels in both babies were not suppressed in the way exogenous insulin poisoning would be expected to produce.

Sources

Other experts on the same side

Post-conviction medical experts.