A senior healthcare boss who worked at the hospital where nurse Lucy Letby murdered seven babies has been arrested on suspicion of perverting the course of justice.

Cheshire Police said they were held then bailed after a search of a property on Wednesday as part of a wider investigation into senior leadership at the Countess of Chester Hospital.

It is part of the force's ongoing Operation Duet - two separate investigations into corporate manslaughter and gross negligence manslaughter at the hospital.

The inquiry began after Letby's conviction in 2023 for murdering the infants and attempting to murder seven others in its neonatal unit in 2015 and 2016.

No details have been revealed by the force about the age or gender of the person arrested, or where the property that was searched was.

But it is understood they are one of the three hospital bosses arrested and bailed in 2025 on suspicion of gross negligence manslaughter.

A statement from Cheshire Police said "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," it added.

The force began its corporate manslaughter investigation into senior leaders at the hospital to "determine whether any criminality has taken place concerning the response to the increased levels of fatalities".

This includes any "grossly negligent action or inaction of individuals", it said.

It was widened in March 2025 to include gross negligence manslaughter.

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