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

The Lucy Letby Case: A Turning Tide in Medical Justice?

The release of the Netflix documentary, The Investigation of Lucy Letby, on Wednesday, February 4, 2026, marks a pivotal moment in a case that has gripped the UK and sparked intense debate within the medical community. The documentary arrives after Lucy Letby was convicted of murdering seven infants and attempting to murder seven others between June 2015 and June 2016, making her Britain’s worst ever child serial killer.

From Initial Investigation to Expert Doubt

Cheshire police granted filmmakers “unparalleled and exclusive access” to the investigation, initially intending to document a straightforward case of infanticide. However, the documentary’s narrative has shifted dramatically following criticism of the prosecution evidence and police handling of the case from a growing number of medical experts. Dr. Dewi Evans, a retired paediatrician, played a key role from the beginning, stating he saw the case as “his kind of case” when approached by police in May 2017.

The documentary highlights a critical point of contention: Dr. Evans’ initial diagnoses differed significantly from previous investigations, including a coroner’s process, postmortems, hospital reviews, and inspections by the Royal College of Paediatrics and Child Health – none of which found evidence of deliberate harm. The police seemingly relied heavily on Dr. Evans’ interpretations without seeking further expert opinion at that stage.

The Role of New Footage and Conflicting Evidence

The Netflix documentary features “never-before-seen” footage, primarily consisting of extended scenes of Letby’s arrests at her home and her parents’ house. This footage has drawn criticism for potential privacy breaches, particularly from Letby’s parents. The documentary revisits evidence presented during the trials, including shift charts linking Letby to 25 “suspicious incidents” and her online activity, such as looking up parents on Facebook.

The film also examines the controversial notes written by Letby, containing statements like “I am evil, I did this” alongside declarations of innocence. It reveals that these notes were written while Letby was experiencing mental distress after being removed from her job and during counselling sessions where she was advised to write down her thoughts. Letby consistently denied the accusations during police interviews.

A Shift in Expert Opinion

A significant element of the documentary features Dr. Shoo Lee, a Canadian neonatologist, who maintains that his research was misused to convict Letby. Dr. Lee and other experts believe Letby is innocent, a victim of a “catastrophic miscarriage of justice.” His presentation, including findings that the babies died from medical causes and a catalogue of poor care, is featured in the film. The mother of one baby featured in the documentary agrees that the hospital failed her and her baby, acknowledging Dr. Lee’s analysis.

Notably, Dr. John Gibbs, a consultant at the Chester hospital, expresses “tiny” doubt, admitting to guilt over failures in care and questioning whether the wrong person was convicted. This is the first public admission of doubt from a doctor involved in the case.

Implications for Medical Investigations

The case raises critical questions about the reliance on expert testimony in medical criminal investigations. The documentary suggests a potential over-reliance on the opinions of a select few experts, while downplaying or ignoring alternative explanations and previous findings. The fact that the Crown Prosecution Service will face no new charges, as of January 20, 2026, further underscores the complexities of the case.

Frequently Asked Questions

• What is The Investigation of Lucy Letby about? It’s a Netflix documentary examining the case of Lucy Letby, a nurse convicted of murdering babies, and the subsequent doubts raised by medical experts.
• When was the documentary released? February 4, 2026.
• What are the key criticisms of the investigation? Concerns centre around the reliance on specific expert testimony and the potential for a miscarriage of justice.
• Who is Dr. Shoo Lee? A Canadian neonatologist who believes his research was misused in the conviction of Lucy Letby.

Pro Tip: Stay informed about this evolving case by following reporting from reputable news sources like The Guardian and BBC News.

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