HC Deb 26 January 1956 vol 548 c52W
66. Mr. Mason

asked the Secretary of State for the Home Department what warning system within our Civil Defence organisation has been evolved to alert built-up areas of pending radio-active fallout following thermo-nuclear explosions during war time.

Major Lloyd-George

Arrangements are being made for the Air Raid Warning Organisation to give warnings of radioactive fall-out from information supplied by the Royal Observer Corps and from other sources.