§ 21. Mr. G. Campbell
asked the Secretary of State for Foreign Affairs what action Her Majesty's Government are taking to procure a comprehensive testban treaty proscribing underground tests.
§ Mr. M. Stewart
I would refer the hon. Gentleman to my right hon. Friend the Prime Minister's reply of 15th February, to the hon. Gentleman, the Member for Barkston Ash (Mr. Alison).
§ Mr. Campbell
Since the recent Soviet explosion has emphasised the importance 887 of this, why has the Minister for Disarmament been unable to make any progress at all?
§ Mr. Stewart
The problem about a test-ban treaty proscribing underground tests is that, unlike other aspects of a test-ban treaty, it is not self-policing. The difficult question of inspection arises, but we are still seeking an agreed way of dealing with the problem.