Lord Sumption:

I agree with that entirely. Earlier I talked about consultation and of course we have a common travel arrangement between the UK and Ireland. The countries of the Schengen Agreement in Europe have a common travel arrangement. If there is a common travel arrangement, it is essential to co-ordinate the arrangements made for restricting travel across borders or for imposing quarantine rules. Exactly how we do this is a difficult question.

The main emphasis of Deputy Burke's question is that it is important for the British and Irish Governments to co-ordinate as closely as possible with a view to not having anomalies like those mentioned by Deputy Burke, especially in circumstances where there is a transparent land border between Northern Ireland and the Republic.