We moved over to the EU design to allow border staff to easily recognise the design and so speed up checks. It makes sense when you are on the way into a relationship to show goodwill.
I have yet to see the plans for the increase in computerisation support and staff levels for the border force.
David Davies stated some time back that he had done DETAILED analyses for Brexit options. oops! Maybe a porkie!
He has since reversed that statement.
Maybe not preparing for tighter borders is a hint that we will keep free movement anyway and give in to EU?
