Thirlwall Inquiry findings to address hospital response in Lucy Letby case
Constantvpn.com – A long-awaited public inquiry into the circumstances surrounding Lucy Letby’s crimes at the Countess of Chester Hospital is due to publish its conclusions on Tuesday, with families, healthcare leaders and criminal justice bodies expected to scrutinise its findings closely.
The Thirlwall Inquiry examined events at the hospital’s neonatal unit during 2015 and 2016, when Letby worked there as a nurse. Its focus was not whether Letby was guilty of the offences for which she was convicted. Instead, it considered how warnings and concerns were managed, whether the response of hospital leaders was adequate, and whether earlier intervention might have prevented deaths or injuries.
Letby, now 36, is serving 15 whole-life sentences after being convicted of murdering seven babies and attempting to murder seven others. One of the attempted murder victims was targeted twice. The inquiry was established to explore how she was able to continue working in the neonatal unit despite concerns raised by clinicians.
Questions over the timing of action
Consultants raised worries about Letby with the hospital’s executive team before she was removed from frontline neonatal duties in July 2016. She was then reassigned to administrative work. A central issue for the inquiry has been whether the warning signs should have prompted action substantially earlier.
Particular attention has been given to June 2015, when three babies died within a short period. The final report may address the difficult question of whether some children could have survived, or avoided harm, if the hospital had acted sooner.
The inquiry was chaired by Lady Justice Thirlwall, one of the country’s most senior judges. Its evidence-gathering process lasted six months and involved thousands of documents. The work has cost more than £18.5m.
Its conclusions are widely expected to identify serious shortcomings in safeguarding and to propose changes for the NHS. For families affected by the events at the Countess of Chester Hospital, the report is intended to provide clearer answers about decisions made at the time and the institutional response to repeated clinical concerns.
Potential impact beyond Chester
The report’s importance extends beyond one hospital. The inquiry’s stated aims include ensuring that lessons are learned across healthcare settings, particularly around clinical escalation, patient safety and the handling of staff concerns.
The case has also revived questions raised decades earlier by crimes committed by nurse Beverley Allitt on a children’s ward in Grantham, Lincolnshire. The inquiry comes roughly 25 years after that case, underlining the continued need for robust systems when unexplained deaths or serious incidents occur in a clinical environment.
Publication has been delayed several times. The evidence and submissions stage began in September 2024 and concluded in March 2025. The findings were originally scheduled for release in November 2025, but the date was subsequently postponed on a number of occasions.
The delay has had further consequences for families. Inquests into the babies’ deaths have been moved back and are now expected to begin in May 2027.
Convictions remain under challenge
Although the inquiry was not asked to revisit Letby’s convictions, its report will be watched by the Criminal Cases Review Commission, the body that can refer a case back to the Court of Appeal.
Letby has previously been refused permission to appeal her convictions twice. Her defence lawyer, Mark McDonald, has said he submitted almost 30 expert reports to the CCRC that he believes call the safety of the convictions into question.
“Nearly 30 expert reports to the CCRC really undermining the whole safety of the convictions.”
McDonald said the volume of expert material was greater than that presented in any other case in the CCRC’s history. He argued that, if Letby were innocent, the inquiry’s work and any recommendations flowing from it would have proceeded from an incorrect assumption.
“If she is innocent, as I believe, as 30-odd experts believe, then everything that has gone before the inquiry and every recommendation has operated on the wrong premise.”
Two experts recently left Letby’s defence team: Professor Geoff Chase of the University of Canterbury in New Zealand and chemical engineer Helen Shannon. They said some arguments being advanced were not consistent with the available science and evidence. McDonald said he was disappointed by their decision but maintained that they continued to believe Letby was innocent.
“What they’re saying is: ‘We think our argument’s better than your argument and therefore we’re coming out of it’.”
Any findings concerning the hospital’s safeguarding systems should be distinguished from the separate legal question of Letby’s convictions. The inquiry was designed to investigate institutional decision-making, while challenges to convictions follow the criminal appeal process.
Police investigation continues
Questions about the hospital’s senior management are also being considered through a continuing police investigation. In July 2025, three former senior Countess of Chester Hospital staff members were arrested on suspicion of gross negligence manslaughter.
All three had served on the hospital’s senior leadership team during the 2015-16 period and remain on police bail. The arrests followed a Cheshire Police investigation into possible corporate manslaughter, which began in 2023 and was expanded in March 2025 to include gross negligence manslaughter.
In April, one of the former senior staff members was arrested again on suspicion of perverting the course of justice. No charges have been brought.
Tuesday’s report will not determine the outcome of those investigations or any future legal proceedings. Its significance lies in setting out what the inquiry found about the hospital’s response, the opportunities for earlier action, and the changes needed to strengthen patient safety across the NHS.
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