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Lucy Letby Facts
Editorial summary (not a verbatim transcript)
·Former DCS Nigel Wenham; Cheshire Constabulary; Thirlwall Inquiry

DCS Nigel Wenham — Operation Hummingbird (Thirlwall Inquiry)

Former Detective Chief Superintendent Nigel Wenham led Operation Hummingbird, Cheshire Police's investigation of the Countess of Chester neonatal cluster. His Thirlwall Inquiry evidence addresses how the investigation was scoped, how the consultants' 2017 briefing shaped police understanding, and how Dr Dewi Evans came to be instructed.

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Editorial summary — not a verbatim transcript.

This page is a summary written for this site. It is not a mirror of the primary document, and nothing on it should be quoted as the words of any person. An earlier version of this page carried quotations that could not be verified against the primary record; those have been removed. For the underlying record, consult the primary source at thirlwall.public-inquiry.uk. See our corrections policy.

Status: Editorial summary written for this site — not a mirrored document

Original source: thirlwall.public-inquiry.uk

Context

Former Detective Chief Superintendent Nigel Wenham led Cheshire Police’s Operation Hummingbird — the investigation of the Countess of Chester neonatal cluster — from its opening in May 2017. His Thirlwall Inquiry evidence is the principal public-record account of how the investigation was scoped, staffed, and advised. It is the counterpart, from the police side, of the anonymous whistleblower report released in December 2025.

Key ground

Read alongside

The Hummingbird whistleblower report, Dr Dewi Evans’s trial testimony.

Related on this site

Officials

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