Oral Answers to Questions — Civil Defence – in the House of Commons on 10th September 1942.

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Photo of Sir John Kerr Sir John Kerr , Combined Scottish Universities

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?

Photo of Mr Herbert Morrison Mr Herbert Morrison , Hackney South

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.