Edit: There's been numerous news reports all over the world about FBI/CIA agents doing police-work without reporting to local authorities in countries which are not the US, where they have no rights and no jurisdiction, as if it was their own turf.
CIA operatives have been charged in numerous European countries for kidnapping and abducting people not guilty on anything by local laws. Because the US wanted them silenced, because of "terror" or whatever.
I'm going to pressume this is what happened here as well.
I can assure you that if anyone had done the same in the US, they wouldn't merely be kicked out, they would be jailed for being in violation of the law.