My hon. Friend is right and will no doubt recall the 1970 general election when Harold Wilson, as Prime Minister, was not allowed to reveal the trade figures that came out immediately after the general election even though he knew them and they would have been very helpful to him. So there have been cases in which Prime Ministers were prohibited from making announcements on the basis of purdah, and I think it would be quite right to follow them in the context of a European referendum.
It was pointed out earlier that the reason the Government are so worried about this is part of the problem—namely, that the EU is involved in so many aspects of our lives that what they are restricted from doing will be much broader than it would be for a normal referendum. That makes it all the more important that this purdah is strictly observed.
We are arguing about whether the situation in which our lives are organised by the EU should remain or whether we should do something different. If, in the month or six weeks before the referendum, popular announcements about the EU were made but unpopular ones were held back—or vice versa—that would be completely improper.