The Thirlwall inquiry has uncovered new details about Letby and the neonatal unit on which she worked
During the two criminal trials of Lucy Letby, jurors were given a huge volume of complex evidence including tens of thousands of pages of medical notes, swipecard data, witness testimony, Facebook messages and more.
Letby, now 34, was found guilty of murdering seven babies and attempting to murder another seven on the neonatal unit of the Countess of Chester hospital in north-west England.