Petitions/Hold an inquiry into the status of the Sino-British Joint Declaration
StatusClosed
Opened16 Dec 2025
Closes16 Jun 2026
Government response
Parliamentary debateNot eligible
Milestones

We call on the Parliament to hold a formal inquiry and investigate whether the JD is void or not as a signatory of the treaty, as we believe there is no evidence that China has acted to ensure the JD abides by the peremptory norms of international law, or “jus cogens.”

According to Article 53 of the Vienna Convention on the Law of Treaties, ‘A treaty is void if, at the time of its conclusion, it conflicts with a peremptory norm of general international law.’ The JD is the legal ground of Hong Kong's handover, but was not passed by a referendum in Hong Kong and we believe there seems to be no evidence HK's election system can comply with ICCPR, meaning the JD may fail to conform to principle of self-determination, and thus conflict with jus cogens.

2,105Total signatures
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Constituency engagement ranking

Luke Taylor
1Luke Taylor MP
Sutton and Cheam
44
Rebecca Long Bailey
2Rebecca Long Bailey MP
Salford
41
Juliet Campbell
3Juliet Campbell MP
Broxtowe
28
Lucy Powell
4Lucy Powell MP
Manchester Central
28
Sarah Hall
5Sarah Hall MP
Warrington South
27
Jo White
6Jo White MP
Bassetlaw
24
Claire Hazelgrove
7Claire Hazelgrove MP
Filton and Bradley Stoke
24
Mr Connor Rand
8Mr Connor Rand MP
Altrincham and Sale West
23
Emily Darlington
9Emily Darlington MP
Milton Keynes Central
23
David Pinto-Duschinsky
10David Pinto-Duschinsky MP
Hendon
22
Hold an inquiry into the status of the Sino-British Joint Declaration — Petitions