Mr LAZZARINI - I do not know what experience, other than, perhaps, personal contact, the writer of that letter has had in regard to trenches, but the trenches which are being dug under the direction of my department are being constructed in the light of experience of the last war and all the experience that can be got from this war. The trenches made in the States are being constructed by technicians and surveyors. All the information we have is that the trenches are the best that can he provided.

Mr Spender - Have a look at some of them ; they are utterly hopeless.

Mr LAZZARINI - Apparently, the honorable member does not know much about trenches. I shall certainly obtain a report on the matter raised in the question. Air-raid precautions in the Australian Capital Territory are under the control of the Minister for the Interior, who, so far as I know, is getting on with the job very effectively.