TrackPolitics logoTrackPolitics
HomeMy MPIssuesPromises
About
HomeMy MPIssuesPromisesCompareSpectrumBillsMPsPartiesVotes
© 2026 TrackPolitics.uk — Holding politicians accountable through data
How Parliament WorksAbout
All votes
Amendment

Diego Garcia Military Base and British Indian Ocean Territory Bill Committee: New Clause 1

Monday, 20 October 2025

View bill

What was this vote about?

This was a amendment on the Diego Garcia Military Base and British Indian Ocean Territory Bill. The bill puts a 2025 UK–Mauritius agreement about the Chagos Archipelago into law and makes related changes to BIOT governance and nationality rules. It has prompted extensive Lords amendments focused on safeguards for Chagossians, sovereignty matters, environmental protections, and parliamentary oversight, which the Commons has largely resisted; the bill is now being considered in the Lords to resolve those differences.

  • •Implements the UK–Mauritius treaty on Diego Garcia and the British Indian Ocean Territory (BIOT), including potential changes to BIOT’s constitutional status and nationality rules for people connected with BIOT.
  • •Lords amendments seek wide safeguards: recognise Chagossian rights (including potential return and a referendum on sovereignty), require negotiations with Mauritius on resettlement and asylum, and establish robust governance and reporting (including a Joint UK–Mauritius Parliamentary Commission and an inter-parliamentary committee).
  • •Provides for cost transparency and financial accountability, including parliamentary scrutiny of treaty payments to Mauritius and mechanisms to delay or condition parts of the Act pending environmental protections and other safeguards.
  • •Introduces procedural controls on Orders made under the Act (notably Clause 6), including a push for negative resolution scrutiny, and contemplates additional safeguards such as independent reporting on environmental and legal risks before provisions take effect.

The result

Motion rejected
Margin: 150
172
322
Aye (35%)No (65%)

494 of 650 eligible MPs voted (76% turnout)

How each party voted

Conservative
Voted for
92 aye0 no22 absent
Liberal Democrat
Voted for
64 aye0 no8 absent
Reform UK
Voted for
7 aye0 no1 absent
Democratic Unionist Party
Voted for
4 aye0 no1 absent
Ulster Unionist Party
Voted for
1 aye0 no
Traditional Unionist Voice
Voted for
1 aye0 no

Who rebelled?(2 MPs)

2 MPs voted against their party whip.

Independent(2 rebels — party voted no)
Patrick Spencer(Central Suffolk and North Ipswich)
aye
James McMurdock(South Basildon and East Thurrock)
aye

Turnout by party

76%
Ulster Unionist Party
1/1 (100%)
Plaid Cymru
4/4 (100%)
Traditional Unionist Voice
1/1 (100%)
Your Party
1/1 (100%)
Liberal Democrat
64/72 (89%)
Reform UK
7/8 (88%)
Conservative
92/114 (81%)
Democratic Unionist Party
4/5 (80%)

What happens next?

The bill continues through its current stage with the amendment applied (or rejected).

Current stage: Consideration of Commons amendments and / or reasons