Illegal Migration Bill

Debate between Lord Wolfson of Tredegar and Lord Hannay of Chiswick

Committee stage
Wednesday 24th May 2023 Lords Chamber

[Lord Hannay of Chiswick (CB)]

I am most grateful to the noble Lord, because I was following with interest his argument, which seems to be that there are two sorts of obligation—those we incorporate in domestic law and international obligations—and the international obligations are less binding, important and necessary. Perhaps the noble Lord could tell me what the status of the UN charter or the Brussels treaty on NATO is. Does he mean that we, as a Parliament, could decide not to apply Article 5 of the NATO treaty? That would be a pretty serious statement to make.

[Lord Wolfson of Tredegar (Con)]

I am reluctant to give the noble Lord a private lecture on this, but I will set out a very short answer. I will be blunt but, I hope, legally accurate. The short answer to the noble Lord’s question is yes; we could do it. International treaties are not part of our domestic law. As far as our domestic courts are concerned—please let me finish and I will give way—if we were to legislate completely contrary to an international treaty, our domestic courts would have to abide by the Act of Parliament, because that is domestic law. Of course, that would put the UK in breach of the international treaty. It is not something I would recommend, but the noble Lord asked me a direct question about how the two interrelate, and that is a necessary consequence of being a dualist state. International treaties are not part of domestic law, unless and until they are incorporated.