Quote:
Originally Posted by 8 Ball
Not to mention the regular calibrating of the equipment that would be required.
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This would be a major issue. Humans naturally have some degree of alcohol in their breath. That amount will go up if you, for example, drink fruit juice or eat breads with high yeast content. You'd have to have some set minimum level, which I'm guessing would be .05 blood alcohol volume and then frequently recalibrate.
Law enforcement has to recalibrate their breathatlyzers every 150 uses. You could probably get away with every 300 uses or so, for one that wasn't being used in a court of law. If the thing automatically shut off your car and your car had to be towed every time the calibration was off, that would drive people nuts.