HC Deb 18 February 1942 vol 377 c1789
37. Sir John Graham Kerr

asked the First Lord, of the Admiralty whether he can give the House the assurance that His Majesty's ships are provided with adequate infra-red photographic equipment for use in conditions of poor visibility?

Mr. Alexander

I would refer my hon. Friend to the reply given to him on 25th March, 1941, in answer to a similar Question. Infra-red photographic equipment cannot usefully be employed in the manner suggested.