Back in the recent day, it was illegal to invade by video or recording and considered rude to paparazzi someone. Japan was way ahead in loosing the ability of boundaries and gates as I recalled in Hawaii when I went on vacation there.

No legal right or claim within property location, on record, invaded illegally means whatever is found is inadmissible in court of law. Global court is vastly different when the laws are different like Snowden said. Even if he can come back. It would be wise to never.