2007-08-18 23:35:08 · 6 answers · asked by Anonymous in Politics & Government ➔ Law Enforcement & Police
There are certian physical abilities that are innate, not controled by our consious mind when we lie. Pupils dilating, heart rate increasing etc..
However, to answer your question: NO. The lie detector, while good for screening for employment, is considered unreliable and untrustworthy for court. The reason for this is that it comes down to the person reading the equipment, you could give the same answer to two different people administering the test, and have the possibility of coming up with two different results. It is not accurate enough for our court system, where they try to be as truthful and straightforward as possible.
2007-08-19 00:14:13 · answer #1 · answered by sixtymm 3 · 0⤊ 0⤋
Yes, a polygraph can be used, but the results would be inadmissible in court. Polygraph results are too unreliable to use as evidence because the suspect can either "beat" the polygraph (this has happened before), or the suspect can be so nervous during interrogation, that the machine may show that they are lying when they are actually telling the truth.
2007-08-19 09:42:00 · answer #2 · answered by The Voice of Reason Is Silenced 5 · 0⤊ 0⤋
I did a try on a lie-detector whilst i replaced into in college. i replaced into 'connected' to it, and confirmed a 'flat line' mutually as I had intercourse (and an orgasm) ... so i does not think of something of someone who had to take a lie-detector try. i will nevertheless 'fool one completely' as we talk, too ... and am prepared to 'tutor it in court docket' ... all it takes is purely a honest wisdom of 'biofeedback' and how the physique works ... and that's plenty TOO easy to verify to 'believe' a lie-detector try.
2016-10-16 02:58:13 · answer #3 · answered by ? 4 · 0⤊ 0⤋
They can but these tests are very skeptical and very expensive. There are so many stipulations in which they can give false readings such as people with high blood pressure, heart murmurs, and anxiety. They only use them as a last resort for major offenses.
2007-08-19 03:17:18 · answer #4 · answered by al l 6 · 0⤊ 0⤋
yes-but
most jurisdictions won't accept the results as evidence in court.
2007-08-19 05:45:46 · answer #5 · answered by sirbobby98121 7 · 0⤊ 0⤋
They are very unreliable and it is possible to learn how to cheat them
2007-08-19 00:04:15 · answer #6 · answered by Mr. Fox 5 · 0⤊ 0⤋