I think the point thats being missed here ( except maybe Jack ) is that the actual limit is not clear.
It's confusing as the assumed driving limit is 80mg, (railways and transport act 2003) and we all know the limit applicable to aviation, in eu Ops and car ops manuals is 20 mg, ie a quarter of the drink drive limit.
Then most companies state zero tolerance to alchohol. Is that zero tolderance to being over the limit, or zero tolerance to the slightest trace ?
Anyone that is tested here in the UAE by the police is prosecuted for having ANY (for that read trace, or anythiong above Zero !) alchohol in their blood.
So a couple of beers in the evening that would not be in anyway dodgy some 12hrs later, Might just spell trouble in the UAE.
A quick read of the local papers shows that the ''dubai court of misdemeanours'' ( i kid you not !) regulary fines people for merely having alchohol in their system, regardless of the amount !
Somewhat odd when the place is pushed as a liberal tourist destination, with a govt that makes a fortune from the 30%tax on booze, go figure!