MaizieD
It does seem obvious that the process of dealing with asylum applications should start in France, (at ports rather than the British Embassy in Paris, though..) But apparently, applications for asylum have to be made in the country that is being applied to. So that would entail the area in France where British staff process applications being designated British territory.
Can you imagine France, in the current dire state of Franco-British relationships, agreeing to that?
(P.S. I'm going by what an immigration expert has said on twitter. It could be wrong. Willing to be corrected if anyone knows better)
I also heard an expert from Oxford university say that



Not a criticism of people on here using it because that’s the ‘official’ was to say it but it chills me when I hear it.