Lucy Letby: inquiry into how former nurse was able to murder babies begins

Hearings into deaths at Countess of Chester hospital's neonatal unit expected to last about four months

• What is the Thirlwall inquiry, set up after Lucy Letby's murder convictions?

An inquiry set up to examine how the former nurse Lucy Letby was able to murder babies at a neonatal unit over a two-year period is due to begin.

Letby, 34, was sentenced to 15 whole-life orders after she was convicted of murdering seven babies and attempting to murder seven others across two separate trials.