And in my third school, 12 rooms. So you can see its quite considerable. But its notjust schools, the Department Of Health said 2a hospital sites like Hitchin Brook Hospital in huntington had weak concrete, known as raac. Other public buildings are also affected, like harrow crown court, which could be shut for nine months. Labour is calling for an urgent audit of all public buildings. It doesnt always need an expensive inspection, but an audit. Some of it would be a desk audit, if you like, done on paper. Some of it would then require further inspection, further audits by Structural Engineers and others. So we do need to know the scale of the problem. This is the aerated concrete used in buildings in the 1960s, 70s and 80s that is causing so much concern. We dont really know the scale of the problem. There is no central record, although individual Government Departments are being required to keep a log, thats not public information. So we know about that risk in schools and also in