Captain Haddock wrote:Come on Button - re Le Touquet it's merely pre-clearence which works in everyone's interest.
The US has been doing this for a while at specific airports (pre Corvid) as 'we' have, with a bit of a nod and a wink (suggesting it might not be a good for someone to travel as he's going to be refused which frees up a seat outward and obligation on carrying company to provide a seat back, even if it means 'bumping' a paying passenger).
What's not to like?
Fair question, but it's the French you could usefully ask, not Moi! Mind you, Le Touquet was some time after Canterbury and even then, whilst it provided for juxtaposition at UK and French seaports facing each other across the North Sea and Channel, this boiled down to just Dover, Calais, Dunkirk (sic) and Boulogne in Schedule 2 of The Nationality, Immigration and Asylum Act 2002 (Juxtaposed Controls) Order 2003. So in other words, juxtaposition didn't catch-on immediately, nor everywhere.
Incidentally, the nod and a wink vetting also applied to containerised goods.