HC Deb 22 December 1981 vol 15 cc367-8W
Mr. Cook

asked the Secretary of State for Defence when his Department last carried out an assessment of the risk of accidental detonation of nuclear weapons; and if he will place a copy of the results in the Library.

Mr. Pattie

Nuclear weapons are designed to the most stringent criteria to ensure against any risk of accidental explosion and the assessment of the safety of nuclear weapons is a continuous process throughout their development, design, production and deployment. Data collected during the course of monitoring of nuclear weapons safety must, however, remain secret.