Hacker News Reader

Are you saying that no sober person has ever been tested? If someone is corrupt enough to manipulate a test to make someone test more inebriated, then they are corrupted enough to make a sober person test drunk.

No - I'm saying that this trick works, because the exit for air/alcohol is blocked. If you don't exhale alcohol to begin with, then this trick should not make any difference.

So if you're completely sober, then you may get "twice" the normal result - but it's still ~0.0

From the title, I'd thought somebody discovered a specific BAC & breath speed combination that'd crash the analyzer, or something. That would've been much more exciting.

Interesting. Could you provide step by step directions on how to do this? I'm not really sure where to begin.

Sure - when you're about to drive, step back and undrink the drink.

Undrinking happens automatically after a dozen or so more drinks.

You're a Prolog programmer, I infer...

And then what? You tell the officer that you really haven't been drinking, and that they can trust you?

Your ignoring the real point here.