§ Mr. E. Walkdenasked the Secretary of State for the Home Department if he will advise Civil Defence controllers and A.R.P. officers in Southern England of the effective protection that can be afforded against flying bombs by the wider use of jim crow roof spotters combined with shrill blasts on whistles and other signals to ensure the provision of a more adequate imminent danger warning.
§ Mr. H. MorrisonWhile I will bear my hon. Friend's suggestion in mind, I am afraid that, up to the present, it has not been possible to find a solution for the technical and other problems involved by the proposal to make the imminent danger warning universal.