If anyone on the flight deck or cabin crew smells of alcohol I would be willing to put money on the fact that they are holding >20 promille in their blood stream i.e. over the CAA/JAR limit.
This equates to a reading of 0.01 on a breath tester (e.g. Lion as used by the police). The UK drink drive limit is 80 promille (0.035 on a breath tester). Now being a seller of Alcohol testing equipment to persons in the industry it's pretty hard to smell of Alcohol with a reading of 0.01. This I know because I have had to test the product we sell extensively - opened my eyes I can tell you, in my 30's and scared the life out of me to think how many times I thought I was clear the morning after when clearly I hadn't been - not any more though now for the blatant advertising, the product we sell is here
www.know4sure.co.uk
Regards
FS