Originally Posted by
astral276
They may need one to get back into England. Plus, if Scotland does join the EU you will need one both ways as they will have to enforce their border as part of the Schengen Area. Scots may need one as the UK will likely set up border checks due to the predicted disparity in immigration policies. Scotland will need to negotiate to join the Common Travel Area (which would be at odds with EU membership - even more so if the UK exits).
Like so many SNP promises this one is based on what the SNP wants to happen without regard for how it affects anyone else or their ability to deliver on their promise. Just another part of their pipedream.