Inquiry finds hospital failures allowed nurse Lucy Letby to kill and harm babies
A British public inquiry led by Lady Justice Kathryn Thirlwall concluded that the Countess of Chester Hospital failed to protect infants, finding that earlier intervention could have saved three babies from nurse Lucy Letby.
Findings on institutional failure
Lady Justice Kathryn Thirlwall published an 822-page report concluding that the Countess of Chester Hospital failed at all levels to protect newborn infants from nurse Lucy Letby. The inquiry found that three babies could have survived and seven others might have been protected if hospital executives and clinicians had acted earlier on staff suspicions. Among those affected, two newborn twins died and another infant suffered lifelong brain damage requiring 24-hour care after an undetected insulin poisoning. Thirlwall noted that removing the infants Letby was convicted of murdering would leave annual neonatal mortality at three in 2015 and three in 2016, which matches baseline trends. Since Letby left the unit in July 2016, only one infant death occurred, recorded in September 2019.
My report describes dysfunctional management and governance, a gulf between hospital leadership and clinicians, and failure to understand the fundamentals of safeguarding.
Delays in administrative and police response
Letby, who qualified at Chester University and joined the hospital in 2012, carried out attacks on 17 infants between June 2015 and June 2016. Methods identified at trial included insulin poisoning, injecting air into bloodstreams and stomachs, and administering excessive milk during night shifts. Senior pediatric consultants grew concerned over sudden collapses in infants who had previously been in stable condition, but senior nursing staff refused to accept that these worries were justified. Hospital executives removed Letby from clinical care to administrative work in July 2016 after consultants escalated their warnings. However, leadership commissioned internal reviews that avoided examining deliberate harm, waiting until May 2017 to invite Cheshire Constabulary to investigate before her eventual arrest in July 2018.
- Lucy Letby begins working in the neonatal unit at the Countess of Chester Hospital.
- Infant attacks begin on the Countess of Chester Hospital neonatal unit.
- Hospital management moves Letby to administrative duties after consultants raise concerns.
- Hospital leadership requests Cheshire Constabulary to open a police investigation.
- Cheshire police arrest Letby for the first time.
- Prosecutors charge Letby with murder and attempted murder of neonatal infants.
- Court convicts Letby of seven murders and sentences her to whole-life orders.
- Lady Justice Thirlwall opens public inquiry hearings at Liverpool Town Hall.
- The Thirlwall Inquiry concludes 59 days of witness testimony.
- Lady Justice Thirlwall publishes the final 822-page public inquiry report.
Inquiry scope and conviction disputes
The inquiry sat for 59 hearing days at Liverpool Town Hall between September 2024 and February 2025, hearing testimony from victim families, clinicians, and NHS governance experts at a public cost exceeding 18 million pounds. Thirlwall established from the outset that her proceedings would examine hospital management, institutional culture, and the handling of parent communications rather than review criminal guilt. Letby received 14 whole-life terms in August 2023 for murdering seven babies and attempting to kill six others, followed by a 15th life term in 2024 after a retrial on a separate attempted murder count. While the Court of Appeal rejected two legal challenges, the Criminal Cases Review Commission is examining submissions from statisticians and medical experts who question the safety of the convictions.
I am even more strongly of the view that the convictions are not safe.
Recommendations for National Health Service reform
Thirlwall set out 14 formal recommendations aimed at preventing similar incidents across hospital wards in England. Key measures include installing continuous video monitors in all neonatal cots and incubators so parents can observe their children remotely, alongside CCTV coverage trained on insulin storage refrigerators. The report also calls on NHS England to outline implementation roadmaps and urges the Care Quality Commission to strengthen hospital inspection standards. Reflecting on the inquiry into nurse Beverley Allitt, who attacked children on a Lincolnshire ward roughly 25 years earlier, Thirlwall stated that repeating such institutional blind spots within the health service was unacceptable.
