Polygraph, pass your polygraph!!!
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every year thousands upon thousands of people (especially police officers) are subjected to polygraphs . Police departments use them as a regular hiring practice for their job openings. There are many reasons that a truthful person will fail. Just a few reasons include nervousness, health problems, surprise, etc…. Polygraphy has not been shown to reliably distinguish between truth and deception in healthy individuals, there is no reason to expect that these “machines” are reliable when used on people with chronic medical conditions. As matter of fact, the american medical association has taken a stand against these machines and testified before congress in support of the 1988 employee polygraph protection act . Once again, there is no way to explain why a subject–healthy or ill–may have “failed.” these “tests” are simply not a reliable way to measure truthfulness. <p
“the b.c. Civil liberties association believes that there is convincing evidence to suggest that the use of the lie detector is arbitrary, subjective, biased toward accusations of guilt and claims of very high validity are scientifically indefensible. However, even if one is not willing to be persuaded by evidence on these matters, one must admit, at the very least, that there is no scientific opinion whatsoever concerning the validity of the polygraph. In fact, there is extremely wide divergence over the validity itself.”
these machines are not to be taken lightly. There are still several hundr…read more detail
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