Re: Geneva Convention
British passports held by Scottish citizens could arguably be deemed invalid,
I don't think that can happen. British citizenship that is acquired by birth cannot be removed or renounced, no matter where the citizen is currently living. Even if such a person were to acquire Scottish citizenship through new Scottish rules, they would still be a UK citizen as far as the UK government is concerned.
The closest comparison is probably when the RoI left the UK. Ireland created its own citizenship and passport, separate from that of the UK, but existing passport holders were unaffected. I don't know if people born today in the RoI have any choice other than Irish citizenship, if they are born to Irish parents. Anyone born in N. Ireland has the choice of British or Irish citizenship, that was the case when both nations claimed the terroritory and it's been enshrined in law after the recent agreements.
Biting the hand that feeds IT
