HC Deb 13 November 1984 vol 67 c222W
24. Mr. Pike

asked the Secretary of State for Defence whether he is satisfied that at all times his Department is fully aware of the position of all nuclear weapons under foreign control in the United Kingdom or United Kingdom territorial waters.

Mr. Stanley

Yes, so far as US nuclear weapons based in this country are concerned. The position in United Kingdom territorial waters at any given moment, of all foreign naval vessels which may or may not be carrying nuclear weapons cannot be known precisely.