The interesting part is that the BAC did not change over an hour. Anyone who has studied elimination curves or played with a breathalyser for fun knows that in the early stages the BAC drops off incredibly quickly so the implication is probably that he was being truthful.
In a nation that has a genetic predisposition to reduced levels of alcohol dehydrogenase (key enzyme in alcohol breakdown), twelve hours bottle to throttle is remarkably short. 6 shots of posh shochu (35- 40% ABV depending on the brand) would easily do that - especially when taken with water which acts as a courier to get the alcohol through the stomach lining.
Sound more like a case for education and a change in policy.