[mAritz]

They've had those things as the country of Scotland under the UK, so I'd assume you could argue that they qualify with that.

[physicsguy]

How? There is a well established separate court system in Scotland so I think that part would be fine. But pretty much every other part of government would have to be built from scratch. A foreign office, a home office, immigration, passport office, etc. etc. etc.

Most of these are institutions are based physically in rUK so it’s not like they can be “split”

[mAritz]

Sure, they'd have to build up new offices and staff them with people. But they have a parliament and they have elections, right?