Moving internationally with fraudulent credentials would land most people in jail, but it seems the local government "loves" the man (no doubt his money helps with political favours), so he's safe from that too.
One, that still involves travel on a fake passport. Two, Ghosn isn’t a Turkish citizen.
> I would have to think he already had the OK from the Lebanese government
Why? This is a classic ask-for-forgiveness-not-permission situation. (Lebanon doesn’t have an extradition treaty with Japan.)
Seems like the CEO of multiple major multinational corporations would be the sort of person who would need this.
So maybe when Ghosn was required to hand over his passports, he gladly handed 3 of them over, quietly retaining 1 or more in a safe place.
It is possible in France to have several passeports of there are reasons for that (for instance what you have in one passport forbids you to enter another country, or could put you in danger...)
Ghosn may have had convinced the authorities to deliver him more passports.