B

Baroness Chapman of Darlington (Lab)

Speaking in the House of Lords on 25 November 2025

Debate

Diego Garcia Military Base and British Indian Ocean Territory Bill

Contribution

My Lords, Amendments 19 and 27 from the noble Lords, Lord Callanan and Lord Lilley, now in his place, seek to ensure that Mauritius will be responsible for any illegal migrants who may arrive at Diego Garcia. These are important amendments, and it is helpful that they have been tabled to allow us to clarify this point. I can reassure both noble Lords that the treaty already ensures Mauritian responsibility and closes a potential—as they correctly identify—illegal migration route to the UK. Mauritius, as the sovereign state and as specifically referenced under Annex 2 of the treaty, has jurisdiction over irregular migration to the Chagos Archipelago, including Diego Garcia. To the extent that the noble Lords, Lord Callanan and Lord Lilley, through their amendments are seeking clarity on the arrangements with Mauritius to put that responsibility into practice, I can assure them that the UK Government are already in the process of agreeing with Mauritius the separate arrangements referenced in Annex 2 paragraph 10 of the treaty, to assist and facilitate in that exercise of Mauritian jurisdiction. These are ongoing negotiations on which I will not provide a running commentary; suffice to say that there will be no need to force the Government to provide a report on the negotiations. Amendment 36 from the noble Baroness, Lady Hoey, is another helpful amendment. It seeks to ensure that any arrangement entered into with Mauritius regarding migrants ensures the humane treatment, full rights of appeal and compliance with international law of any asylum seeker or refugee. It is an important amendment, and I can confirm that the Government will, of course, ensure that any arrangement we enter into will comply with applicable international law and our domestic obligations. For that reason, I think that the amendment is unnecessary, but I thank her for tabling it and allowing us to make that clear. I hope that noble Lords will not press their amendments.

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