Detectives have arrested a senior hospital boss on suspicion of perverting the course of justice in connection with the probe into killer nurse Lucy Letby.
Cheshire Constabulary said a search warrant was carried out at a property on Wednesday, and the individual was arrested and later bailed pending further inquiries.
Letby, 35, from Hereford, is serving 15 whole-life orders after she was convicted at Manchester Crown Court of murdering seven infants and attempting to murder seven others between June 2015 and June 2016.
The babies were attacked by various means while Letby worked as a nurse on the neonatal unit at the Countess of Chester Hospital.
In July last year, three members of the leadership team at the hospital, who occupied senior positions between 2015 and 2016, were arrested on suspicion of gross negligence manslaughter.
The Press Association understands the suspect arrested on suspicion of perverting the course of justice was one of the three arrested last year.
In a statement issued on Thursday, police said: “On Wednesday April 22, officers from Cheshire Constabulary executed a search warrant at a property in connection with Operation Duet.
“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 inquiries.
“The searches at the property have now concluded.
“Both the corporate manslaughter and gross negligence manslaughter elements of the investigation are continuing and there are no set timescales for these.”
