§ Mr. McFallTo ask the Secretary of State for Defence what review his Department has made of the safety of the existing designs and designs currently under development of nuclear warheads; what application of three-dimensional modelling has been used; and what reconsideration has resulted of the safety case for an actual nuclear explosion which might be accidentally or unintentionally initiated leading to the dispersal of radioactivity and/or a nuclear yield.
§ Mr. Archie HamiltonAll of the United Kingdom's nuclear warheads are designed to meet stringent safety requirements. Before entering operational service, the designs are subject to a comprehensive series of trials and assessments, encompassing normal and credible abnormal environments of in-service life, and to formal safety approvals procedures, which are assessed independently. In addition, the United Kingdom conducts a continuous safety review of all operationally deployed designs by way of routine examination and sophisticated modelling.