HC Deb 20 January 1987 vol 108 c524W
Mr. D. E. Thomas

asked the Secretary of State for Foreign and Commonwealth Affairs to what extent it is necessary to test British nuclear warheads periodically for reliability; and if he will make a statement.

Mr. Renton

As long as a comprehensive nuclear test ban fails to be negotiated the United Kingdom will continue to conduct tests in order to maintain the effectiveness of its nuclear capabilities.