What was his crime?
Financial wrong doing.
Japan is rather cagy about publishing unproven charges.
It makes sense in a way. Publishing unproven accusations about a company could really damage a company.
Alleged financial crimes, but nothing that sounds super serious (like major fraud on investors would be) - more like hiding assets, underreporting income and misusing company assets for personal use. I haven’t seen any numbers, though.
His Wiki page has a pretty good summary of the charges - (other than that - he is a pretty impressive character on a whole lot of levels - Speaks 4 1/2 languages and is a citizen of Brazil, France and Lebanon)
https://en.wikipedia.org/wiki/Carlos_Ghosn
Basically he was fighting to have Renault combine with Nissan to give Renault a bigger customer base and the Nissan board said no. He kept on pushing the issue so the board basically reported to the courts all the taxes he evaded and the court crushed him.
In Japan, they can keep you for almost 30 without a charge and interview you relentlessly and renew that status several times. Nissan basically used this and the criminal charges to get rid of him, because they knew for over a decade all the money he was amassing and how.
They wouldn’t treat a Japanese exec like this, I’m sure.