2006-09-24 14:49:36 · 10 answers · asked by Anonymous in Social Science ➔ Psychology
It depends on how nervous the person is. There are some people that would be so nervous just being hooked up to the machine that their answers would all come back like they are lying, when they aren't. On the other hand, there are some people that are so comfortable with lying that they can pass the lie detector with no problems.
It actually does work for some people though, just not for everybody. That's why they aren't admissible evidence in court.
2006-09-24 14:59:39 · answer #1 · answered by Anonymous · 0⤊ 0⤋
Lie detectors are built on the assumption that bodily changes (in sweating, cardiovascular changes) manifest in a person who is lying.
But some people who lie can be somewhat in control of these things, control their anxiety, for example. And even honest people can get nervous by just being interrogated. So lie detector tests are very unreliable. This is why the results of lie detector tests are inadmissible in court.
2006-09-24 21:26:28 · answer #2 · answered by ELI 4 · 0⤊ 0⤋
Usually, yes, but they are not admissible in court.
A sociopath or psychopath will always beat a lie detector, because they sincerely believe their own lies.
Am extremely nervous person who is innocent may fail a lie detector test.
There are ways to beat the lie detector, but I will not give out that information here.
2006-09-24 14:59:54 · answer #3 · answered by GreenHornet 5 · 0⤊ 0⤋
Yes and no---it is possible to fool them, but I suggest you read Paul Eckman's book "Telling Lies" it is a good resource for law enforcement (and liars) whichever way you are coming from, and give a great deal of information on lie detectors.
They are not admissable in court, however, but do give an indication from which the agency can work from. Sometimes stress from a previous lie can play a factor in these tests and throw the whole thing off.
2006-09-24 16:22:54 · answer #4 · answered by KR 2 · 0⤊ 0⤋
Yes, but they can be wrong. That is why they are not admissable in court.
Example: I was ask during a test if I had ever changed any paperwork around. I answered No and it showed I was lying. I explained to the operator that at that job I didn't have any thing to do with paper work but when he ask that question I thought about some traffic tickets I had reduced and it showed up. During the re-test I pass,
Now what if I had been asked Did you shoot someone and My answer was NO. But I thought about Deer I had
shot. Then what, would they have re-tested me then OR charged me with Murder or what ever.
2006-09-24 14:58:41 · answer #5 · answered by Jerry 6 · 0⤊ 0⤋
They go off of your pulse. So in my belief you could pass it but most people do not because they think about the anwser there heart beat and pulse change which can identify if infact there are lieing
2006-09-24 14:58:02 · answer #6 · answered by jharris8506 2 · 0⤊ 0⤋
Not really... they don't have too, the reader who interprets it, has all the marbles, and can tell if your lying.
2006-09-24 15:30:21 · answer #7 · answered by Boliver Bumgut 4 · 0⤊ 0⤋
Sort of -but they are not fool proof .
2006-09-24 14:57:24 · answer #8 · answered by missmayzie 7 · 0⤊ 0⤋
yes and no
2006-09-24 14:57:01 · answer #9 · answered by start w/ laughs ends witha fight 3 · 0⤊ 0⤋
not accuratly enough to matter
2006-09-24 15:09:08 · answer #10 · answered by justasking 2 · 0⤊ 0⤋