Yes. The hon. Member makes a really important point. This is why I resist the temptation to set a simplistic threshold above which a certain level of action is taken. That is because there might be an incident—I mentioned that there might be such an incident in a workplace, for instance; there might also be one in a halls of residence—where we get a very high number of cases, but if it is confined and not in the wider community we would not want to take action to restrict the social activity of the wider community. That has to be taken into account, along with the data on the number of cases and the positivity, because the number of tests that you put in affects that as well. We take all these things into account in asking both when an area needs to have more restrictions applied and when we can take an area out of restrictions, which of course is so important for everybody living there.