Skip to content

July 2026: Government declines to widen the Thirlwall terms of reference (16 July) · new 100-page insulin report to the CCRC challenging the trial evidence (9 July) · Thirlwall report still expected no earlier than September · inquests relisted to 2027 · Shoo Lee Panel: no medical evidence of deliberate harm.

Lucy Letby Facts

Conflict-map · Post-conviction medical experts

Prof. Geoff Chase

Independent physiological-modelling expert

Physiological modellingScientific literature2Expert/professional

Main contribution

Physiological-modelling specialist, University of Canterbury, New Zealand. With chemical engineer Helen Shannon, published a peer-reviewed paper in the Journal of Diabetes, Science and Technology (reported December 2024) arguing that a large share of preterm babies show high insulin readings and that insulin-binding antibodies are a common, non-criminal explanation for the pattern seen at trial.

Key claim

Chase and Shannon argue the insulin doses alleged at trial are not physiologically plausible: for Baby L, they say the administration method proposed by the prosecution would have needed 20 to 80 times more insulin than it could deliver. Chase told the BBC the 'impossible' result described by the prosecution 'is effectively quite common' in preterm infants.

Sources

Conflict-map topics this expert participates in

Full biographical profile

Prof. Geoff Chase — biography

Other experts on the same side

Post-conviction medical experts.