HC Deb 17 September 1940 vol 365 cc123-4W
Sir R. Blair

asked the Home Secretary whether his attention has been directed to the similarity of the sound of certain motor omnibuses while on a low gear, in the Metropolitan area, and the commencement of an air-raid warning; and whether he will take steps to diminish this unnecessary disturbance and consider, particularly during daylight, reducing the time given for warning signals?

Sir J. Anderson

There is a certain similarity between the sound of some motor vehicles in low gear and the begin- ning of the air-raid warning signal; but, as I have stated on previous occasions, misapprehension arising from this cause cannot be more than momentary. As regards the second part of the Question, the duration of the warning signal has already been halved.