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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
Independent commentary

Lucy Letby Miscarriage of Justice - Lab Elevated Insulin Readings by 788% in New Revelation

A laboratory error of extraordinary magnitude is reported: a Liverpool lab elevated an insulin reading from 108 to 962 picomoles per litre — a 788 percent inflation — and this lab is identified as having worked on samples in the Letby case. The immunoassay method used produces false positive results, and mass spectrometry, the more accurate technique, was not employed. A third insulin case involving a child with congenital hyperinsulinism was not disclosed to the defence, a matter Lord Ken McDonald describes as a serious disclosure failure. A referral to the Criminal Cases Review Commission is characterised as 'inevitable' given these revelations.

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2 min read

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Host

One hundred and eight picomoles per litre became nine hundred and sixty-two. That is a seven hundred and eighty-eight percent increase. The lab made that error and nobody caught it.
Topic: Lucy Letby Miscarriage of Justice - Lab Elevated Insulin Readings by 788% in New Revelation

Host

Immunoassay produces false positives. Everyone in the field knows this. Mass spectrometry is the gold standard for forensic insulin testing. It was not done.
Topic: Lucy Letby Miscarriage of Justice - Lab Elevated Insulin Readings by 788% in New Revelation

Host

There was a third insulin case. A child with congenital hyperinsulinism. The defence were never told. Lord Ken McDonald has described that as a serious disclosure failure.
Topic: Lucy Letby Miscarriage of Justice - Lab Elevated Insulin Readings by 788% in New Revelation

Host

A CCRC referral is inevitable. That is not my opinion. That is the logical consequence of what has now been revealed about the insulin evidence.
Topic: Lucy Letby Miscarriage of Justice - Lab Elevated Insulin Readings by 788% in New Revelation
insulin-evidence
laboratory-error
disclosure-failure
ccrc
immunoassay

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