Written Question·Ministry of Defence·UIN 77522

Radiation Exposure: Testing

Tabled: 16 September 2025
Answered: 14 October 2025
Named Day

Question

Emma Lewell

LabourSouth Shields

To ask the Secretary of State for Defence, whether his Department holds information on UK participation in civilian radiation experiments conducted by the US during the Cold War.

Answer

Louise Sandher-Jones
There is no evidence of any UK participation in unethical US radiation experiments on humans. Officials located ministerial correspondence dating from 1996 that summarise the details of UK conducted voluntary civilian experiments involving the use of low-...

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