HC Deb 10 September 1942 vol 383 cc275-6
19. Sir John Graham Kerr

asked the Home Secretary whether he is aware that the nature and in some cases the individuality of an object of military importance when viewed from a high angle, is betrayed by its characteristic outline; that violently contrasting patches of pigment are effective as a means of disguising outline; that numerous aerial photographs show military objects such as stationary ships and vehicles in which no use is made of such disruptive camouflage; and whether he will take immediate steps to end this ignoring of a basic principle of camouflage?

Mr. H. Morrison

The principles whereby disruptive painting may be used to conceal the outline of an object are well understood and are in extensive use where conditions are suitable, but a number of factors influence the decision as to whether such methods should be applied.