Why are you Brits so paranoid about the rules and regulations?
Here in Canada we now are blessed with " NEW " regulations called CAR's, they are so badly written no one can interpet them so maybe you guys could send your regulators over here for a copy? To many weirdly worded regulations leads to confusion and mass non compliance...so just use common sense that works every time.
Now if you want to enforce something try looking at your illegal immigration problem.
When I step off an airplane in London I think I've landed in the wrong country.
There that should start another argument.
Chuck