Lucy Letby case: Suspect arrested for perverting course of justice in baby deaths probe
Detectives have arrested a man on suspicion of perverting the course of justice in connection with the investigation into murderous nurse Lucy Letby.
Cheshire Constabulary said a search warrant was executed at a property on Wednesday.
One person was arrested and later released on bail pending further investigation.
Police did not provide further details about the person’s identity.
Letby, 35, is Britain’s most prolific child serial killer.
He is serving 15 life sentences after being found guilty at Manchester Crown Court of murdering seven babies and attempting to murder seven others between June 2015 and June 2016.
While Letby was working as a nurse in the neonatal unit at the Countess of Chester Hospital, babies were attacked in a variety of ways.
Calls for a retrial are growing as the 36-year-old’s legal team raises significant questions about the safety of his convictions.
Amanda Knox recently released a podcast about her case titled SUSPICION: The Case of Lucy Letby.
Netflix also released a documentary. The Investigation of Lucy Letby.
In a statement released on Thursday, police said: “On Wednesday 22 April officers from Cheshire Constabulary executed a search warrant at a property in connection with Operation Duet.
“Operation Duet is an ongoing investigation into corporate manslaughter and gross negligence manslaughter at the Countess of Chester Hospital.
“One person was arrested on suspicion of perverting the course of justice. They were later released on bail pending further investigation.
“Currently the search of the property has been completed.
“Both the corporate manslaughter and gross negligence manslaughter elements of the investigation are ongoing and there is no set timeline for these.”
The corporate manslaughter investigation was launched in October 2023, and the gross negligence manslaughter investigation was launched in March 2025.
Police said at the time they were focusing on “grossly negligent action or inaction by individuals.”
The doctor who first raised the alarm about Letby in 2023 called for NHS managers to be held accountable for ignoring concerns he raised in July 2015.
Stephen Brearey, chief consultant in paediatrics, called for hospital administrators to be regulated in the same way as doctors and nurses.
