Written questions

Radiation Exposure: Testing

Commons · Question 77522 · Tabled 16 Sep 2025 · Ministry of Defence · Official record

Answered 14 Oct 2025

Question

Asked by Emma Lewell

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

Answered by Louise Sandher-Jones, 14 Oct 2025

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-...