Lucy Letby documentary reveals first admission of ‘tiny’ doubt from doctors who accused her

Netflix film revisits evidence that led to Letby's conviction and hears from expert who says his research was misused

Shortly after Lucy Letby was sentenced to 15 whole-life terms for murdering seven infants and attempting to murder seven others between June 2015 and June 2016 - a conviction that made her Britain's worst ever child serial killer - Cheshire police agreed to give unparalleled and exclusive access" to the makers of a Netflix film about the case.

The finished documentary, The Investigation Of Lucy Letby, which is released on Wednesday, must be very different from what the producers envisaged when they first began work on the project, given the subsequent unexpected turns in the story. Since the two trials, the prosecution evidence and police handling of the case have faced criticism from an unprecedentedly large number of distinguished British and international medical experts. Led by the Canadian neonatologist, Dr Shoo Lee - who says again in the feature-length Netflix documentary that his research was misused to convict the nurse - many of the experts are convinced Letby is innocent, the victim of a catastrophic miscarriage of justice.