The noble Lord asked about the lead-up to 2025 and the ETA. It is a new immigration system—there will be a pragmatic approach to people coming in and out of this country, because it is a whole new system and will take some time to bed in. The ETA will give both security and certainty on people coming in and out of this country.
In terms of data sets, we obviously now use exit checks; if someone has a visa, it will be on their visa how long they are able to stay. The noble Lord talked about the person who literally went in and out of Lille in one day in order to update their boarding card. He makes a very good point.
This system will take some time to bed in. I will write to the noble Lord about some of the very specific supplementary questions he has asked; I am just giving him the answers that I know off the top of my head. As for sanctions for someone who has not complied, obviously it is easier for someone with a visa, and less easy for someone doing a series of short stays.