HC Deb 16 February 1944 vol 397 c191W
Mr. Granville

asked the Secretary of State for the Home Department if he can give details of the new system of air-raid warning put into operation during recent weeks; and if he contemplates any further changes for the immediate future.

Mr. H. Morrison

As I explained in reply to a question by my hon. Friend the Member for Durham East (Mr. Ritson) on 8th July last, it is not possible to publish details of the new system of issuing air raid warnings without giving useful information to the enemy. Present experience of the working of the new system does not indicate that any further changes will be required in the near future.