A manager at the hospital where Lucy Letby worked has been arrested on suspicion of perverting the course of justice in connection with an investigation into the child killer. They were detained as part of the probe into corporate manslaughter and gross negligence manslaughter at the Countess of Chester Hospital, Cheshire Constabulary said. Officers carried out a search warrant at a property on Wednesday and the individual was arrested and later bailed pending further inquiries. Their name has not been made public. “Both the corporate manslaughter and gross negligence manslaughter elements of the investigation are continuing and there are no set timescales for these,” the force said. The force previously arrested three individuals who were part of the senior leadership team at the hospital between 2015 and 2016 on suspicion of gross negligence manslaughter. They were bailed pending further enquiries. The individual arrested on Wednesday is one of those three people. Letby, 35, is serving multiple whole-life sentences for murdering seven children and attempting to murder seven more between June 2015 and June 2016 while …