Richard Gill, an emeritus professor of mathematics at Leiden University in the Netherlands, was involved in two cases similar to Letby’s in which statistical coincidence was wrongly used in part to convict two nurses of murdering their patients:
Lucia de Berk, a neonatal nurse in the Netherlands, and Daniela Poggiali in Italy. Their convictions were eventually quashed, thanks in part to Gill’s contributions.
Gill, who has drawn much criticism for pointedly posting on social media during the trial that the Letby shift table was meaningless and that she had suffered a miscarriage of justice, said: “The police investigation and crown prosecution made all the mistakes the RSS warned about. Nobody studied the statistics in a professional way.”