The words to use
- Thirlwall Inquiry
- The public inquiry, chaired by Lady Justice Thirlwall, into events at the Countess of Chester Hospital, 2015 to 2018. It reported on 15 September 2026 with 17 recommendations.
- CCRC
- Reviews possible miscarriages of justice. It cannot quash a conviction, but can refer it to the Court of Appeal if there is a "real possibility" it would not be upheld.
- Whole-life order
- A life sentence with no possibility of release. Letby has one for each of her 15 offences.
- Suspicion of Deliberate Harm Protocol
- Thirlwall's proposed one-page NHS rule for concerns that a professional may be harming patients deliberately: act at once, move the person as a neutral step, involve the police.
- Balance of probabilities
- The civil standard of proof: more likely than not. The inquiry used it for its findings, which are not a criminal verdict.