Lucy Letby gave a potentially fatal dose of morphine to a newborn two years before babies began dying unexpectedly at the Countess of Chester Hospital, the Thirlwall Inquiry has heard.

Lucy Letby was convicted of killing seven babies and attempting to murder yet another seven before she was charged and sentenced to serve a life sentence in prison

Giving evidence at the Thirlwall Inquiry, Melanie Taylor said she could not remember which baby's death Letby was referring to, but recalled how she spoke about it. She said: "It