Thirlwall Inquiry Blames Hospital for Failure to Stop Lucy Letby
A statutory public inquiry has blamed the Countess of Chester Hospital for a complete failure at all levels to protect newborn babies from former neonatal nurse Lucy Letby. The findings were published on 15 September 2026. Al Jazeera
Letby was convicted of murdering seven babies in the hospital's care. Inquiry chair Lady Justice Kathryn Thirlwall said those deaths, and the attempted murders of six other babies between June 2015 and June 2016, could have been prevented. Letby, 36, received 15 life sentences for the murders and attempted murders.
The inquiry pointed to dysfunctional hospital management. It found a complete failure at every level to use safeguarding procedures, the formal safety rules hospitals must follow when patients may be at risk, like a fire alarm that was never switched on. No such procedures were used at any point.
While managers ran internal reviews, executives did not tell parents about growing suspicions around Letby. Families did not learn of those suspicions until her arrest in July 2018. Managers also gave infants' confidential medical files to outside experts without telling parents or asking for consent.
The inquiry made 17 recommendations. They include fitting every incubator on neonatal wards with a webcam or video monitor so families can watch their infants remotely. They also include 24-hour CCTV over hospital fridges that hold insulin until access is limited by keycard.
The Thirlwall Inquiry is the public inquiry set up to examine events at the Countess of Chester Hospital after the trial and convictions. It was set up to look at 2015 to 2018, and its report was published on GOV.UK as 'Thirlwall Inquiry report'. GOV.UK It was announced in September 2023, a month after Letby was found guilty of murdering seven babies.
The final report came after delays. The Department of Health and Social Care had said the chair expected to publish in early 2026. In March 2025, the chair rejected calls to pause the inquiry.
The inquiry said re-examining trial evidence or the safety of the criminal verdicts was outside its legal remit, the limits set by law on what it can decide. Letby continues to say she is innocent and has twice been denied permission to appeal. Her legal team has applied to the Criminal Cases Review Commission, the body that reviews possible miscarriages of justice.
The broader context here is what accountability looks like when warning systems do not correct themselves. The findings point to parallel breakdowns in escalation, telling parents what is known, and control of sensitive materials like patient records and insulin storage. For staff on neonatal units, the test will be putting remote viewing, restricted access and clearer escalation into daily practice. That shifts oversight from senior managers toward families and audit trails. Whether that rebuilds trust will depend on enforcement, funding and consistent use across units, not on publication alone. How the Criminal Cases Review Commission handles the application will shape whether what follows stays focused on hospital reform or returns to the courts.
