Would my right honourable friend confirm  that the former director of G C H Q, Sir Brian Tovey, stated that during the imposition of martial law  in Warsaw and during the Soviet anva invasion of Afghanistan  some ten thousand hours of cover were lost  at G C H Q. And will he not confirm that is a perfectly good reason for the ban on external  er interference by trade unions in the activities of G C H Q and will he also  assure the house that the existing trade assoc the staff association works perfectly well and there is no reason whatever for an external trade union to interfere in G C H Q's affairs.