B

Baroness Chapman of Darlington (Lab)

Speaking in the House of Lords on 5 January 2026

Debate

Diego Garcia Military Base and British Indian Ocean Territory Bill

Contribution

My Lords, Amendments 51 and 54, tabled by the noble Lord, Lord Purvis, concern the establishment of a UK-Mauritius inter-parliamentary committee to oversee the implementation and operation of the treaty. I would love to please the noble Lord—I am happy to continue talking to him—but I am afraid that I will disappoint him this evening. Amendment 51 seeks to require the Government to engage with Mauritius to create a committee, with equal representation from both parliaments and the purpose of promoting mutual understanding of the provisions of the treaty. The committee would have responsibilities, including monitoring the implementation of the treaty and its impact on Chagossians. Amendment 54 ties the commencement of the Act to the establishment of this committee. I completely recognise that the intention behind the amendments is to promote dialogue and scrutiny. However, Mauritius’s agreement to it could not be guaranteed, and the treaty itself makes no provision for an inter-parliamentary committee. Indeed, there would seem to be some potential for overlap—perhaps even conflict—between the proposed role of the committee and that of the joint commission under the treaty. Furthermore, introducing this requirement would at least delay, if not prevent, the ratification and implementation of an agreement that is vital for our national security. There are numerous committees across the two Houses that can—and, I am sure, will—undertake periodic inquiries into the operation of the treaty. This joint committee could overlap with the work of these Select Committees—and that would not be right. We have Select Committees for a purpose, and it is for them to scrutinise the work of departments, so I do not believe that we should try to replicate that. I know that the noble Lord feels passionately about supporting Chagossians. He has told me that and I commend him on it, but I do not think a joint committee will increase trust among the Chagossian community. As mentioned on earlier groupings, this Government are committed to a relationship with Chagossians built on trust and acknowledgement of the wrongs of the past. There are also elected representatives in the other place who are there to advocate for their constituents, and there are many in this House who also do this. The agreement has already been subject to extensive scrutiny under the Constitutional Reform and Governance Act 2010, and both Houses have had the opportunity to consider its terms. The treaty also establishes a joint commission under Article 12 to manage its operation, which is the appropriate forum for bilateral engagement. For those reasons, I hope that the noble Lord will withdraw his amendment.

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