HC Deb 24 November 1975 vol 901 c25W
Mr. Sillars

asked the Secretary of State for Defence what has been the annual cost in each of the past five years of testing nuclear devices; and what sum has been allocated in the current financial year for such purposes.

Mr. Mason

For security reasons it is not the practice to disclose information of this nature. Only one nuclear device test has been conducted by us in the last five years.