Letby's defence has gone beyond challenging the shaky insulin evidence into advancing arguments that cannot withstand basic scientific scrutiny. Shannon and Chase still stand by their doubts over the insulin convictions, yet walked away rather than attach their names to claims that contradict established physiology. A strategy that forces its own experts to quit risks undermining Letby's case instead of strengthening it.
Two experts stepping back changes nothing. Letby's case ultimately rests on the breadth and convergence of nearly 30 international specialists in insulin, endocrinology and laboratory medicine, whose evidence challenges the science behind the convictions. If the CCRC takes that evidence seriously, two departures need not derail her bid to overturn them.
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