Diego Garcia Military Base and British Indian Ocean Territory Bill

Debate between Lord Callanan and Lord Hannan of Kingsclere

Committee stage
Tuesday 25th November 2025 Lords Chamber

[Lord Hannan of Kingsclere (Con)]

My Lords, I support the amendment of the noble Lord, Lord Morrow. I thank the Ministers for the patience and courtesy that they have displayed all evening. The two Ministers and the Whip know that they are among my favourite Peers, not just my favourite Government Front-Benchers, and they have been very patient and good-humoured.

I take issue with the idea that this is a done deal. That is an argument that has run through a lot of the debates and this seems to be the apt amendment on which to take it on. We have been told repeatedly—including by the noble Baroness, Lady Chapman, last week, and again just before dinner by the noble Lord, Lord Kerr of Kinlochard—that the treaty has been signed and been passed by the CRaG process and that therefore all this is, as it were, dancing after the music, and we would be exposing ourselves to a much more dangerous situation if we now try to hold it up.

I ask the Committee to ponder the possibility that the CRaG process has not in fact been a full democratic exercise. There has been no vote. Everything was rushed through from Second Reading in one day—there was no Report stage. I have never been a Member of the other place, unlike some of your Lordships present, but, as I understand it, you have a vote in the CRaG process by moving an amendment or a resolution and then voting for it. Looking online, I see that there is such an amendment, standing in the name of my right honourable friend the Leader of the Opposition and others, signed by 107 Members of the other place, from six political parties. I concede that that is not nearly as big a deal as it would have been a decade ago—there has been something of a splintering of parties. As yet, there has been no vote on it.

I mention this because the idea that therefore we have no option except to tweak statements at the margin and polish the edges of this, and cannot look for substantive changes, is fundamentally at odds with what was promised when the CRaG process was brought in. If the treaty was rushed through without debate in another place, surely the only proper scrutiny and the only proper chance of amendment is in this Chamber. Therefore, I hope that noble Lords on all sides will feel uninhibited when it comes to moving and, in due course, voting on substantive amendments. This is the one realistic opportunity that we have to make the points that would be made by the people from the Chagos Islands watching us now if they had a voice in our counsels.

[Lord Callanan (Con)]

My Lords, as the noble Lord, Lord Hannan, reminds us, this amendment gets to the core of the criticisms that have been levelled against the Government’s approach to this Bill so far. As my noble friend Lord Lilley pointed out numerous times during the debates on the first day in Committee, it is very difficult to see which court could have delivered a binding judgment against the UK on the question of sovereignty over the Chagos Archipelago. Yet it is the repeated contention of the Government that this treaty is somehow essential to deliver legal certainty.

The question remains of which court could have delivered a binding judgment that would have threatened that legal certainty and the security of the military base. I hope that the Government can finally provide us with an answer. If they cannot answer that question then the argument that this treaty and this Bill were both necessary falls apart. Indeed, the argument that the treaty and the Bill are needed urgently also falls apart, and we should consider whether the Government should take a more circumspect approach. That is what the amendment of the noble Lord, Lord Morrow, suggests.

If this treaty is necessary, Ministers must surely have considered other options before coming to this agreement with Mauritius. Perhaps the Minister can tell the Committee what consideration was given to resettlement of the Chagos Archipelago by Chagossians, for example. What would the cost have been for that? What is the difference between that cost figure and the true cost associated with this treaty? I say “true cost” because the Government’s initial claims on costs have now been thoroughly discredited.

There were lots of options that should have been considered, so perhaps the noble Baroness can tell us what options were in fact considered. I understand that these are specific questions about the process followed by Ministers before agreeing to the treaty with Mauritius, so if the noble Baroness cannot say with certainty what potential approaches were considered, perhaps she could write to us to confirm the details.

Diego Garcia Military Base and British Indian Ocean Territory Bill

Debate between Lord Callanan and Lord Hannan of Kingsclere

Committee stage
Tuesday 18th November 2025 Lords Chamber

[Lord Hannan of Kingsclere (Con)]

I will, of course, invite an intervention. I do not know what the rules are on intervening on an intervention.

[Lord Callanan (Con)]

I am happy that my noble friend gives way, because, since the noble Lord intervened on me earlier, I have had a chance to check the facts of the case and, unsurprisingly, he is completely wrong. Parliament has not ratified the treaty because Parliament cannot ratify the treaty. The ratification of treaties under the CRaG legislation is a matter for the Government, using the royal prerogative. Parliament can delay the ratification but cannot prevent it. Whatever this House voted, or whatever the House of Commons voted, the Government are entitled, under the royal prerogative, to ratify the treaty in any case. I hope that is helpful to my noble friend.