Episode Details

Lucy Letby, the former neonatal nurse at the Countess of Chester Hospital, was convicted of murdering seven babies and attempting to murder seven others between 2015 and 2016, receiving 15 whole-life prison orders. This episode follows the complete Lucy Letby timeline, from the first unexplained neonatal deaths and doctors' warnings to Operation Hummingbird, her arrests, controversial handwritten notes, two trials and failed appeals.

But the case didn't end with her conviction. In 2025, an international panel of medical experts challenged the prosecution's medical evidence and concluded they found no evidence that the babies were deliberately harmed. Letby's convictions are now under review by the Criminal Cases Review Commission, while prosecutors declined additional charges in January 2026. We examine the evidence, controversy and unanswered question at the heart of Britain's most disputed modern criminal case.