Thought of this strange idea when I was trying to sleep last night, wondering if anyone can confirm it would work or prove it wrong.
Not only does your liver break down the alcohol, but your lungs actually pass alcohol back into the air that you exhale, and this is what the breathalysers measure.
However, if you could master the art of breathing in through your nose, while breathing out through your mouth, like some wind instrument players have to, surely this would be a way to beat the system?
You would breath in clean air through your nose, and breath it straight back into the machine, thus passing the test as the air doesn't enter your lungs.
Anybody who plays instruments where they have to breath in and out at the same time care to shed some light on the situation?