asked the Secretary of State for Defence if regular checks of the electronic equipment on cruise missiles are undertaken, especially after each lorry journey outside the base.

Regular checks are made to ensure the continuing efficiency and reliability of ground-launched cruise missiles.

asked the Secretary of State for Defence what technical evaluation there has been of the operating characteristics of cruise missiles based in the United Kingdom; if he is satisfied with the results of such evaluation; and if he will make a statement.

These missiles have been subject to an extensive flight testing, and test and evaluation programme in the United States. The overall flight testing of the ground launched cruise missile has been satisfactory. Some details were given in the answer I gave to the hon. Member for Houghton and Washington (Mr. Boyes) on 30 January 1984, column 33.