I think the most explicit reference to the dangers of a hard border—of border crossings and customs officials being re-established—and the most serious warning about those has come from the chief constable of the Northern Ireland police service. He was very explicit on this subject, and I
think he was much more explicit about the dangers than anybody has been in this House. I do not want to question the importance of what the noble Lord is saying, but it is worth recalling that the most outspoken remarks have come from the chief constable.