How many roads actually cross the border?
People are not going to be smuggling vast amounts of goods across the empty wastes of the Cheviots on some cheeky footpaths. It’s impractical, and could be caught pretty easily.
A hard border doesn’t NEED to mean customs etc. on every road. TBH lots of borders exist where you can just drive across if you have nothing to declare (plenty Canada/ US or Sweden and Norway for example) but if you do then you have to take specific roads. A similar type of thing could be used between England and Scotland. (A point to note being that Norway is part of Shengen but a bigger point probably being that they are open to the EU not combative)
This is a problem with NI/RoI because of
a) the specific terms of the GFA…
b) Boris promised to take control of our borders and has been combative since … well before he was a politician
Its a huge problem for Boris if you believe this:
https://www.bbc.co.uk/news/technology-41412561
“Whether it is number plate recognition or a driver’s smartphone app telling customs everything in a lorry has been cleared, the technology needed to make a border work smoothly is not exactly rocket science. The real challenge is bringing together politicians, customs officials and businesses from different countries to allow it to launch successfully.”