Link"“Diplomatic immunity doesn’t protect you if you’re on your own private boondoggle,” said Dick Gregorie, a former federal prosecutor in Miami who in the 1980s indicted the prime minister of Turks and Caicos, another British colony, on drug charges and the then Panamanian strongman Gen Manuel Noriega."
Prosecutors - former or current - can claim anything they'd like, just as all attorneys seem to.
IF Fahie qualifies for diplomatic immunity - far from a certainty - then only his home country (the UK in this case, I believe) can waive it. Plenty of outrageous conduct has been acted out by people covered under diplomatic immunity - including by Americans - that could not be prosecuted because their home country stood by their citizens, refused waive immunity, and they had to be released. They're usually PNG'd, but they don't go to jail.
It is definitely entertaining, though.
