"In his adjournment debate last week, David Davis drew on reviews by two senior police officers: Dr Steve Watts, an ex-assistant chief constable who authored the National Police Guidelines on the investigation of deaths in healthcare settings, and retired Detective Superintendent Stuart Clifton, who investigated the murders of Beverley Allitt. According to Davis, DS Clifton had been ‘commissioned by The Sun newspaper to confirm Letby’s guilt’. ‘Indeed, both policemen believed that Letby was guilty—that is, until they examined the hard facts, and both now believe that the Letby case is a serious miscarriage of justice,’ he said."
Two former Detective Superintendents (that is a high rank in the British Police) who believed she was guilty, have done a 180 about face once they saw the evidence. That is telling.