I'm a bit confused here. Isn't the office of the mayor a political seat? Are they not allowed to make subjective decisions in the course of their duties? How is this grounding for a lawsuit at all?
I know in the US it's a pretty low bar for a lawsuit, but I was under the impression that the UK required some genuine reasoning for going to court.
It just seems insane that an American spy company can sue another country for saying "hey, maybe it's not a good idea to have an American spy company running our police force".