Former nurse Lucy Letby has denied allegations of tampering with a premature baby's breathing tube in an attempt to murder the infant. During her testimony at Manchester Crown Court, Letby stated that she did not recall the events in question but maintained that she did not harm the baby. She explained that it was hospital policy to wait and see if a baby "self-corrected" rather than intervene immediately. Letby refuted claims that she tampered with the baby's breathing tube twice to cover her tracks after being caught in the act.