HC Deb 22 November 1982 vol 32 c361W
Mr. Dalyell

asked the Secretary of State for Defence whether it is the practice to store the arming and fusing mechanisms of nuclear weapons in different parts of a ship from the weapons themselves.

Mr. Blaker

It would be contrary to the interests of national security to reveal details of the construction or deployment of British nuclear weapons. However I can say that the inadvertent or accidental arming of such weapons is not possible.