Polygraph (lie detector) tests

@lucy02 (5015)
United States
March 30, 2009 4:20pm CST
Have you or anyone you know ever taken a polygraph? I see them used on cases a lot but I know they aren't permissable in court so I wonder about their reliability. I watch the news shows sometimes and see people who fail that are innocent and pass that aren't some times. It just seems to me that if someone is an accomplished liar they could pass the thing. On the other hand, if a person is a really nervous person, I can see where they might fail even though they are being truthful. What are your thoughts?
3 people like this
6 responses
@fasttalker (2796)
• United States
10 Apr 09
Let me tell you first hand...THEY ARE NOT RELIABLE! I worked at a retail business several yars ago and $100 come up missing from a register....yep my register. I had to take one and I failed it bigger than Dallas! I was a nervous wreck taking it and then I about had a stroke when they said I failed it! I was actually fired from that job and 3 weeks later they called me and apologized, saying they had found the error and wanted me to come back. Ummmm....No Thanks I said! They did pay me for the time I was off but I told the owner that called me to come back he was nuts! I mean what if it happened again. He assured me that it wouldn't but as I told him he failed my test and I wouldn't work for them again for any amount of money! It was kind of mean out of me but I drew my unemployment from them for 18 months! LOL So it ended up costing them way more than $100.00! Oh well sucks to be them! LOL
@lucy02 (5015)
• United States
10 Apr 09
Glad to get a first hand account. I would have been nervous too. I also would not have gone back. It's scary though how some people believe these things to be the ultimate test of truth. They are far from it.
2 people like this
• United States
10 Apr 09
You're right. I never gave it much thought until I was faced with it. My situation was serious to me but I often think about people in much more serious situations depending on these things! Thanks
1 person likes this
@AmbiePam (92474)
• United States
2 Apr 09
There are ways to beat polygraph tests, including many prescriptions every day people take. There is another way, but in case we have any potential murderers in mylot, I'll not say. There are false positves for lying, but then there are also false negatives. Where people lie and it looks like they are honest. I put a lot of stock in them, but I certainly understand why they can't be presented as evidence in court.
2 people like this
@lucy02 (5015)
• United States
2 Apr 09
Thanks AmbiePam. I was thinking of the Jessica Lunsford case I believe....where the grandmother failed the lie detector and it turned out she had nothing to do with Jessica's disappearance. Sometimes I see it used on the court shows and I question if its accurate or not too.
1 person likes this
@Dolcerina (3376)
• Hungary
31 Mar 09
Hi Lucy02! I have never had to take this kind of liar test so far. But I hope I will never have to prove my right with it. I think I would be too nervous immediatelly when they ask the most important questions to me. So I do not trust in its reliability.
2 people like this
@lucy02 (5015)
• United States
31 Mar 09
Hi Dolcerina! I was hoping you'd still be here on Mylot. I agree. I tend to be nervous anyway.
1 person likes this
@oyenkai (4394)
• Philippines
8 Apr 09
I've never even seen on except in movies. Based on what I've heard of them and how they are used in the movies and in the tv series that I watch - they don't seem to be very much reliable. They usually use it as a last resort but still not to convict a person, only to find further evidence. I think it mainly relies on someone's increase heart rate - and that can be influenced by various causes like being with a really hot girl/guy :) Thanks for the response on my discussion!
1 person likes this
@lucy02 (5015)
• United States
8 Apr 09
You're welcome and thanks for your response. I agree with you. There's just too many other factors that can increase your heart rate.
@Canellita (12029)
• United States
10 Apr 09
I was given a written polygraph when I applied for a job in a department store. Things looked good but I didn't get hired. Later I took another and the recommendation from the service was that it was up to the discression of the manager to decide whether or not to hire hire me. I figured out you can't be completely honest, that is too honest. They are looking for a mix of certain answers and if you are too honest it will work to your disadvantage.
1 person likes this
@lucy02 (5015)
• United States
10 Apr 09
You know I have a feeling if anyone was "completely honest" we wouldn't get hired for anything. I remember being asked something during an interview one time (don't even remember the question) but I gave an honest answer even though I knew he probably wouldn't like it. Well he looked at me kind of funny and yep, they never called me.
1 person likes this
@Canellita (12029)
• United States
11 Apr 09
It is really a sad state of affairs when you can not be honest because someone who practices lying thinks you are being dishonest or thinks when the time comes for you to deal with a customer you are going to cause the company a problem with your honesty.
• United States
30 Mar 09
from what i've read on them, i don't consider them extremely reliable, and i suppose that's why they don't use them in court most of the time. if they were 100%, then i'm sure they'd be used in just about every court case lol. they're used for talk shows, like maury, bc that's pretty much the closest to reliable they can get in situations like that. based on what i've seen, the things measured to determine whether someone is lying or telling the truth are signs that can be caused simply by anxiety. idk about you, but i'd be nervous and anxious being hooked up to something like that, whether i was telling the truth or not.
@lucy02 (5015)
• United States
30 Mar 09
Exactly. I'm a nervous type person too so I might fail just because of that.
1 person likes this