New Arrest in Lucy Letby Probe: Ex-Boss Questioned on Suspicion of Perverting Course of Justice at Baby Murder Hospital

Cheshire Police have arrested a former senior executive at the Countess of Chester Hospital on suspicion of perverting the course of justice in the ongoing corporate manslaughter investigation connected to Lucy Letby’s convictions for murdering seven babies.

Latest Arrest in Operation Duet

The force confirmed today that officers executed a search warrant at the unnamed individual’s home. The person is one of three senior executives arrested in June 2025 and has been bailed pending further enquiries. Police have not disclosed the individual’s age or sex. A spokesman for Cheshire Constabulary said: “Operation Duet is the ongoing investigation into corporate manslaughter and gross negligence manslaughter at the Countess of Chester Hospital. An individual was arrested on suspicion of perverting the course of justice. They have subsequently been bailed pending further enquiries. The searches at the property have now concluded.”

Background to the Scandal

Lucy Letby, 35, is serving 15 whole-life orders after being convicted of murdering seven premature infants and attempting to murder seven others on the neonatal unit between June 2015 and June 2016. She has twice had applications to challenge her convictions rejected by the Court of Appeal. Letby, of Hereford, has always maintained she is innocent. In April 2025 her new defence team submitted evidence from a panel of international experts to the Criminal Cases Review Commission in a bid to have her convictions overturned. The experts claim no murders took place and instead assert that the babies died or collapsed because of natural causes or poor care. In January 2026 the Crown Prosecution Service announced it would not bring further charges against Letby after concluding the evidential test was not met in any of the cases.

Independent Report Exposes Management Failures

According to an independent report leaked to the Mail’s Trial+ podcast, babies’ lives could have been saved if hospital bosses had acted sooner to remove Letby from working. The report, commissioned by the Countess after Letby was first arrested in July 2018, found managers were “inexperienced” and missed 14 opportunities to suspend the nurse because they became “blinkered” to the possibility she was responsible. Instead of alerting the police, they commissioned a series of ineffectual external investigations which failed to get to the bottom of why babies were unexpectedly collapsing and dying. Executives also “ostracised” and “bullied” doctors when they continued to raise concerns and demand police be called in. The report, carried out by independent healthcare consultancy Facere Melius which has been blocked from publication, concluded that “earlier action potentially would have reduced the number of baby deaths” and “had different decisions been made the spike in baby deaths would have been picked up sooner internally and externally, and potentially, lives could have been saved.” By February 2016 at least two senior executives at the hospital knew about the link between Letby and the infant deaths.

Public Inquiry Criticism of Cover-Up Claims

At the public inquiry investigating Letby’s crimes, senior management at the hospital faced serious criticism over their handling of the spike in deaths. In their closing speeches lawyers for the infants’ families accused executives of orchestrating a cover-up to protect the reputation of the hospital, lying to the families and bullying the consultants who tried to raise the alarm. Peter Skelton KC, who represents seven of Letby’s victims, said they displayed “a form of individual and corporate self-protection that should have no place in the NHS.” Kate Blackwell KC, for the senior executives, said in her closing remarks that they now accepted they should have called in police sooner. But the barrister insisted it was never expressed to them in “stark” terms that Letby was causing deliberate harm before June 2016 – when she attacked and murdered Babies O and P and was finally moved from frontline nursing into an administrative role. Ms Blackwell said managers accepted they had failed to follow safeguarding policies, made mistakes in their communication with the babies’ parents and that there was a breakdown in their relationship with the paediatricians, who should have been better supported. But she insisted all their decisions were taken “in good faith” and they “vociferously denied” claims they deliberately and knowingly “harboured” a murderer or put the hospital’s reputation before the safety of babies in their care.

What This Means for Britain

This latest arrest keeps the focus on the ongoing police investigation into events at the Countess of Chester Hospital. While Lucy Letby remains convicted and serving her sentence, the corporate manslaughter probe and the public inquiry continue to examine the actions of hospital management during the period of the deaths and collapses. The independent report highlighted missed opportunities and management decisions that, in hindsight, could have altered the outcome. At the same time, Letby continues to maintain her innocence and her legal team is pursuing further review through the Criminal Cases Review Commission. The case raises important questions about safeguarding procedures, whistleblowing and accountability within the NHS. As the investigation proceeds, the public and the families involved await further clarity on what happened and how decisions were made at the time. The situation serves as a reminder of the need for thorough, transparent processes when serious incidents occur in healthcare settings.

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This article is a factual summary of reporting by the Daily Mail. Full original story available on their website. All quotes directly attributed. Lucy Letby maintains her innocence and the investigation is ongoing.