Wrong Court
From my reading of the matter, the Suit was brought in a commercial jurisdiction, not a criminal one. While the finding may have found gross negligence on the part of the aforesaid Thai responsible, the enforcement of any sanction could only be completed if the individual responsible landed in a French Territory. As has been stated before, you can 'prosecute' a claim in any court that offers jurisdiction, but your ability to enforce any finding is considerably constrained.