Question to the Ministry of Defence:

To ask the Secretary of State for Defence, what information his Department holds on data that was gathered from blood samples taken from servicemen (a) before, (b) during and (c) after their service at the UK nuclear tests in the 1950s and 1960s.

The Ministry of Defence is unable to locate any information that suggests that Atomic Weapons Research Establishment staff took blood samples for radiological monitoring at the tests. Service personnel who were present may have had blood samples taken during their career, but these individual military medical records are not held centrally.