There is the rub. He can't walk out scot-free. Well Scotland Yard free anyway.
Having ducked the rape investigation, he'll never be free. Men who have not raped women rarely refuse to talk to the police by hiding in an embassy for a decade. Julian needs to come out and be interviewed, or answer questions through some other means. I'll always regard his failure to do so as a sign of guilt.
Enjoy the couch Julian, but don't ever get to thinking you'll be free. You'll never be free of this now, and that is very much your own doing.