> No, it would not be illegal to make a law whose punishment was an oubliette. The British Parliament is sovereign and supreme, and can make any law it wishes.
Sure, but this is the same argument that comes around whenever previously signed treaties become 'inconvenient'.
Parliament can, of course, choose to ignore EHCR/Geneva/pick-any-other-ratified-treaty. But there are both predictable and unpredictable consequences for doing so, so in practice it's prudent for parliament to not just wield their unlimited power to just start murdering whoever they fancy.
Sure, but this is the same argument that comes around whenever previously signed treaties become 'inconvenient'.
Parliament can, of course, choose to ignore EHCR/Geneva/pick-any-other-ratified-treaty. But there are both predictable and unpredictable consequences for doing so, so in practice it's prudent for parliament to not just wield their unlimited power to just start murdering whoever they fancy.