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View Full Version : Mythbusters takes on the Lie Detector!


SUBMAN1
08-21-08, 05:14 PM
I just had to share this!

http://www.veoh.com/videos/v156165449PtdfdNr

-S

Thomen
08-21-08, 05:19 PM
I just had to share this!

http://www.veoh.com/videos/v156165449PtdfdNr

-S

Did you see the follow up show, where the test MRI's as lie detector and the chick failed it? As punishement tp whomever failed the test they had to take the bus to get home.

SUBMAN1
08-21-08, 05:23 PM
I just had to share this!

http://www.veoh.com/videos/v156165449PtdfdNr

-S
Did you see the follow up show, where the test MRI's as lie detector and the chick failed it? As punishement tp whomever failed the test they had to take the bus to get home.

Thats on there man! Watch the video. I stiched together all of it.

-S

Thomen
08-21-08, 05:34 PM
I just had to share this!

http://www.veoh.com/videos/v156165449PtdfdNr

-S
Did you see the follow up show, where the test MRI's as lie detector and the chick failed it? As punishement tp whomever failed the test they had to take the bus to get home.

Thats on there man! Watch the video. I stiched together all of it.

-S

Ahh ok. =)
After the show with the MRI, I really started to dislike the chick.. pretentious spoiled little girl.. hehe

SUBMAN1
08-21-08, 05:39 PM
Ahh ok. =)
After the show with the MRI, I really started to dislike the chick.. pretentious spoiled little girl.. heheMan, I felt for her! If you had to drive 3K miles cross country on a BUS! Trust me, no peace! Almost 3 days to go that distance, day and night! That would be hell! At least let me drive!

Watch again. you might not feel so bad for her this time!

-S

Letum
08-21-08, 07:09 PM
I remember watching a British program in which a plummer (or was it a carpenter?)
showed unusual ability to fool polygraphs consistently after buying his own and
practicing.

SUBMAN1
08-21-08, 07:13 PM
I remember watching a British program in which a plummer (or was it a carpenter?)
showed unusual ability to fool polygraphs consistently after buying his own and
practicing.I'd be curious to try it.

Statistics show (regardless of what the guy says on the program) that 20% of all people, regardless if they are telling the truth or not, will fail. That is one in 5. This also means that 1 in 5 will also pass when they are not telling the truth. Not a very reliable platform.

-S

UnderseaLcpl
08-21-08, 10:58 PM
Statistics show (regardless of what the guy says on the program) that 20% of all people, regardless if they are telling the truth or not, will fail. That is one in 5. This also means that 1 in 5 will also pass when they are not telling the truth. Not a very reliable platform.

-S


Hence its' inadmissability as evidence.

Platapus
08-22-08, 04:26 AM
Here is a good read on the weaknesses of the Polygraph.

http://antipolygraph.org/pubs.shtml

Just don't tell your polygraph examiner that you read it!

August
08-22-08, 10:03 AM
Statistics show (regardless of what the guy says on the program) that 20% of all people, regardless if they are telling the truth or not, will fail. That is one in 5. This also means that 1 in 5 will also pass when they are not telling the truth. Not a very reliable platform.

-S

Hence its' inadmissability as evidence.

Yep.

Letum
08-22-08, 10:14 AM
Statistics show (regardless of what the guy says on the program) that 20% of all people, regardless if they are telling the truth or not, will fail. That is one in 5. This also means that 1 in 5 will also pass when they are not telling the truth. Not a very reliable platform.

-S

Hence its' inadmissibility as evidence.

Wasn't it used for a time in American courts?

Digital_Trucker
08-22-08, 10:54 AM
Wasn't it used for a time in American courts?

Yes, back when it was believed to be accurate.

August
08-22-08, 11:37 AM
Isn't the result still admissible when a defendant passes the test?

Digital_Trucker
08-22-08, 11:44 AM
Isn't the result still admissible when a defendant passes the test?

Don't believe so, since it's too simple a matter to pass the test (that is if you can control your heart rate and BP, or are so delusional that you believe your lie to be true)

SUBMAN1
08-22-08, 11:46 AM
Here is a good read on the weaknesses of the Polygraph.

http://antipolygraph.org/pubs.shtml

Just don't tell your polygraph examiner that you read it!I browesed through that a little bit. It would seem that taking one for the FBI is a very bad thing! Taking one for anyone is a bad thing regardless even. 50% of applicants fail the FBI one, yet it stays on your record for life? That means any government agency upon hiring you is going to look at that failure. Any security clearence you need they are going to look at that failure. You just cut your arm off on what types of jobs you would be able to obtain from taking the FBI's version!

-S

geetrue
08-22-08, 12:06 PM
We had a young man working for us when I worked for the Chuck Wagon in Houston many years ago.

He would brag about his father being a race car driver and hunting and fishing stories and girls he had slept with. We all knew it was a lie, but we were too busy serving up hamburgers to care.

Due to the large amount of cash that flowed through that place we all had to take a polygraph every three months. The boss kept saying that there was money missing and even said, "I bet it's that little liar ... I can't wait till he has to take his test"

Sure enough the the time to take the test came and went. The rest of the crew was all anxious to know the results. The boss calls the main office and they said he passed.

We don't know if he was stealing, but we do know he was a cronic liar.

Perhaps a person that lies all the time even believes the lies and could in effect pass a polygraph.

SUBMAN1
08-22-08, 12:11 PM
We had a young man working for us when I worked for the Chuck Wagon in Houston many years ago.

He would brag about his father being a race car driver and hunting and fishing stories and girls he had slept with. We all knew it was a lie, but we were too busy serving up hamburgers to care.

Due to the large amount of cash that flowed through that place we all had to take a polygraph every three months. The boss kept saying that there was money missing and even said, "I bet it's that little liar ... I can't wait till he has to take his test"

Sure enough the the time to take the test came and went. The rest of the crew was all anxious to know the results. The boss calls the main office and they said he passed.

We don't know if he was stealing, but we do know he was a cronic liar.

Perhaps a person that lies all the time even believes the lies and could in effect pass a polygraph.

Are you serious? A company cannot force you to take a polygraph test. Do you realize that you could sue him and own yourself a little burger joint?

-S

Digital_Trucker
08-22-08, 12:14 PM
We had a young man working for us when I worked for the Chuck Wagon in Houston many years ago..
...

geetrue
08-22-08, 12:24 PM
We had a young man working for us when I worked for the Chuck Wagon in Houston many years ago.

He would brag about his father being a race car driver and hunting and fishing stories and girls he had slept with. We all knew it was a lie, but we were too busy serving up hamburgers to care.

Due to the large amount of cash that flowed through that place we all had to take a polygraph every three months. The boss kept saying that there was money missing and even said, "I bet it's that little liar ... I can't wait till he has to take his test"

Sure enough the the time to take the test came and went. The rest of the crew was all anxious to know the results. The boss calls the main office and they said he passed.

We don't know if he was stealing, but we do know he was a cronic liar.

Perhaps a person that lies all the time even believes the lies and could in effect pass a polygraph.

Are you serious? A company cannot force you to take a polygraph test. Do you realize that you could sue him and own yourself a little burger joint?

-S

I was too embrassed to add that the year was 1961 when these things were fairley common. :huh:

SUBMAN1
08-22-08, 01:07 PM
I was too embrassed to add that the year was 1961 when these things were fairley common. :huh:My bad! :oops:

-S

Platapus
08-22-08, 02:04 PM
Just remember that the polygraph is only a recording device. It is not a matter of "beating" the polygraph as the polygraph does not make any decisions or evaluations. It is the Polygraph examiner that takes the information and makes his or her inference.

The Human Polygraph examiner is imperfect. He or she can accidently, deliberately, incidentally make errors in their judgement.

Polygraph recordings are supposed to be reviewed by an independent examiner but there are too problems with this

1. There is a shortage of experienced polygraph examiners
2. Even experienced polygraph examiners are human and can make the same or different mistakes.

If you are accused of a crime NEVER agree to take a polygraph. It can't in any way help you

a. If the examination shows no deception, the prosecutor will just ignore the findings and make a statement that the polygraph is not always right or that you were able to use polygraph countermeasures

b. If the examination shows deception, the prosecutor will parade the findings around exclaiming the virtues of the polygraph.

Either way you lose.

SUBMAN1
08-22-08, 02:13 PM
Just remember that the polygraph is only a recording device. It is not a matter of "beating" the polygraph as the polygraph does not make any decisions or evaluations. It is the Polygraph examiner that takes the information and makes his or her inference.

The Human Polygraph examiner is imperfect. He or she can accidently, deliberately, incidentally make errors in their judgement.

Polygraph recordings are supposed to be reviewed by an independent examiner but there are too problems with this

1. There is a shortage of experienced polygraph examiners
2. Even experienced polygraph examiners are human and can make the same or different mistakes.

If you are accused of a crime NEVER agree to take a polygraph. It can't in any way help you

a. If the examination shows no deception, the prosecutor will just ignore the findings and make a statement that the polygraph is not always right or that you were able to use polygraph countermeasures

b. If the examination shows deception, the prosecutor will parade the findings around exclaiming the virtues of the polygraph.

Either way you lose.Sounds about what I got from that article.

It sounds like what Prosecutors do - anything to bust you in their favor. Here is another example - DUI:

Only the machine back at the station can be used to prosecute you. What they do in the field about making you walk a line, hold your feet up, or whatever else they do, such as making you take a small breathalyzer can only be used as evidence against you and never can help you in court.

The point being, the moment a cop pulled you over, he has already made a decision to take you downtown or not. All the crap in the field is just evidence against you, not for you. It won't be brought up if you passed OK, but will be if you are charged as added evidence.

-S

August
08-22-08, 02:25 PM
Are you serious? A company cannot force you to take a polygraph test. Do you realize that you could sue him and own yourself a little burger joint?

-S
Yes they can force him as a condition for continued employment and no he couldn't, well, he could but he wouldn't have been successful.

This is because nobody is forced to work at a particular company. If you don't like the company's rules then you are free to leave and find work somewhere else.

SUBMAN1
08-22-08, 02:30 PM
Yes they can force him as a condition for continued employment and no he couldn't, well, he could but he wouldn't have been successful.

This is because nobody is forced to work at a particular company. If you don't like the company's rules then you are free to leave and find work somewhere else.Read DOL rules. You are wrong on that one.

The only one that is allowed to is the Federal Government.

-S

SUBMAN1
08-22-08, 02:32 PM
For your future knowledge August:

OVERVIEW
The Employee Polygraph Protection Act of 1988 (EPPA) generally prevents employers from using lie detector tests, either for pre-employment screening or during the course of employment, with certain exemptions. Employers generally may not require or request any employee or job applicant to take a lie detector test, or discharge, discipline, or discriminate against an employee or job applicant for refusing to take a test or for exercising other rights under the Act. In addition, employers are required to display the EPPA poster in the workplace for their employees.


The Employment Standards Administration's Wage and Hour Division (WHD) within the U.S. Department of Labor (DOL) enforces the EPPA.



Full info here - http://www.dol.gov/compliance/laws/comp-eppa.htm

Platapus
08-22-08, 06:39 PM
OVERVIEW
The Employee Polygraph Protection Act of 1988 (EPPA) .....

What if you are in a "right to work" state like Virginia? Either side (employee or employer) can terminate the work contract at will. Does this act influence this?

Platapus
08-22-08, 06:41 PM
Only the machine back at the station can be used to prosecute you.

So when the law says that you can lose your license if you refuse a breath test it is not referring to the street test but only to the test at the station?

SUBMAN1
08-22-08, 06:45 PM
Only the machine back at the station can be used to prosecute you.
So when the law says that you can lose your license if you refuse a breath test it is not referring to the street test but only to the test at the station?
That is true. The street one is not accurate enough. Only the big one back at the station can be used in court and you cannot refuse it.

-S

SUBMAN1
08-22-08, 06:46 PM
OVERVIEW
The Employee Polygraph Protection Act of 1988 (EPPA) .....
What if you are in a "right to work" state like Virginia? Either side (employee or employer) can terminate the work contract at will. Does this act influence this? Yes. They can't even suggest taking a poly - unless your work is related to governmental / top secret or similar.

-S