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AWE: Disclosure of Information

Asked by Sir John HayesConservativeMinistry of DefenceTabled Answered 15 December 2025UIN 97491

The question

To ask the Secretary of State for Defence, if he will publish all document titles from the Merlin database that have been declassified by the Atomic Weapons Establishment.

Answered by Louise Sandher-Jones

All document titles from the Merlin database that have been declassified will be published. Over 4,700 records from the Merlin database are currently listed and accessible on The National Archives (TNA) website. Records are being regularly transferred from AWE to TNA who will make them available at the earliest opportunity.

Guidance on accessing these records can be found at: https://www.nationalarchives.gov.uk/help-with-your-research/research-guides/records-of-veterans-of-nuclear-testing-the-contents-of-the-merlin-database/

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