The hon. Lady asks why should they refuse. That is a fair question, but some people have refused to co-operate with vaccination and blood testing. Some have barricaded themselves in and refused blood testing: it happened in Essex, Devon and the hon. Member for South-East Cornwall provided another example. These things do happen, but forced entry is a last resort. Nobody wants it, but it is, regrettably, necessary in dealing with epidemic control by vaccination and blood testing. In those circumstances, entry is necessary in the national interest. That is why those powers are in the Bill.