Quote:

Your example of people seeking to pass a field sobriety test getting advice from convicted drunk drivers has absolutely no validity here since, breathalyzer evidence alone has, and does convict drunk drivers in ALL 50 states daily, polygraphs ........ NOT

The key words are "direct" and "unequivocal".

Breathalyzer's directly measure a person's level of inebriation.  Polygraphs directly measures a person's F3 (fight, flight, freeze) response to a question, not truthfulness.

And the results from a breathanlyzer, therefore are unequivocal.  You are X% drunk.  Polygraph results are not unequivocal.  F3 responses are not unique to deception.  An F3 reaction, could be explained by other reasons.  If one is told they are having trouble with a given question (biased against that question), each time that question is asked they might well react to it.  Then again, never forget the polygraph is not really a test, as the ultimate goal is not to measure truthfulness, but to elicit information.  

TC

P.S.  If you disagree with me, then you are a complete idiot, and probably work for the Iranians!