I suggest that there is a way out. The local authorities should make a survey, and the Department should make a covering survey. This would be a convenient way of checking up. No doubt the right hon. Gentleman is familiar with this point. A survey could be made by local authorities and inspectors from the central Department; and if local authorities themselves did not make the survey, it could be made by the Department, in default. This has been done in 12 counties in England in recent years.
One hon. Member threw out a challenge about this question which I should like to take up. He asked whether it was not possible for some of these Measures to be taken out of ordinary party politics? Well, if we have to wait until parties in Scotland make up their minds, it is time parties were abolished. This matter cannot wait and I want the right hon. Gentleman to press on, beyond 20 per cent. if he can. It often happens that in wartime, people's habits change and there is more chance of getting something done. I congratulate the right hon. Gentleman on bringing this Measure into the forefront of social reform in Scotland and I only hope that the administration will be equal to the success which he has had with this Bill so far.