The Lie Detector

By: Mr. Deeds

Intro

Did you know that about 400,000 careers are ruined every year from being wrongly flunked on polygraph tests? If you are happy with your job, or your dadÕs job, you better read my report. (And IÕm NOT lying!)  In this report you will be shown what a lie detector is or does.  You will learn the history or future of it.  You will see the problems with it.  Last but definitely not least you will find out about the usage and buying.

What it is or Does

What really is a lie detector?  According to Kevin Bosnor  ŅPolygraphs, commonly called Ōlie detectors,Õ are instruments that monitor a person's physiological reactions. These instruments do not, as their nickname suggests, detect lies. They can only detect whether deceptive behavior is being displayed.Ó  They canÕt really detect lies they can only watch your physiological reactions.

Do you know how a lie detector works?  This is how.  According to Kevin Bosnor, the examiner looks at the lie detector to see how the person's heart rate, blood pressure, respiratory rate and electro-dermal activity are acting.   (Electro-dermal is your sweatiness, and in this case the sweatiness of your fingers.) The machine measures the change in comparison to normal levels. Fluctuations may indicate that person is being deceptive, but remember, theyÕre not always reliable, as you will find out later in my report.

What does a lie detector use to work?  The lie detector uses a series of technical things on the computers such as a seismograph.

Do you know how to cheat a lie detector?  Well I donÕt because in my opinion you canÕt.  But in another personÕs opinion you can.  But according to Kevin Bosnor you canÕt.  What do you think?  If you want to research it more go to this website and read about it.  Website is http://people.howstuffworks.com/lie-detector.htm

History or Future

Who was the lie detector invented by and when?  William M. Marston invented the lie detector known as the polygraph during 1917.

Problems

How reliable are lie detectors?  According to Brendan I. Koerner, they are not.  Everyone admits that polygraphs are unreliable. So why are government employees subjected to tests that can ruin their careers?  How many careers does it ruin you ask me, read this.  Prior to the law's passage, according to Senate testimony, an estimated 400,000 workers suffered adverse consequences each year after they were wrongly flunked on polygraphs.

Have you ever wondered if a lie detector can be wrong?               According to Kevin Bosnor it can because people get really nervous when they are hooked up to it and your body reacts to nervousness and the lie detector is looking for things that happen to your body which can make it wrong and you will suffer the consequences.

 

Usage and Buying

Can you buy a lie detector?  Yes you can buy a lie detector you can even make your own if you had a few of the right materials.  Mostly the F.B.I. and other military forces use it.

Conclusion

Did you know that they have two different kinds of lie detectors?  The first one (old one) is called the analog polygraph.  The second one (new one) is this and it looks like this picture.

Today, most polygraph exams are administered with digital equipment like this.


 

Bibliography

 

1

Bibliography

Source:

http://en.wikipedia.org/wiki/Polygraph

Author:

Wikipedia

Title:

Polygraph

Date of retrieval:

25 April, 2007

Brief Summary:

This awesome article has 1 picture and 12 cool chapters.

 

 

2

Bibliography

Source:

http://skepdic.com/polygrap.html

Author:

Carroll, Robert Todd

Title:

Polygraph (lie de

Date of retrieval:

25 April, 2007

Brief Summary:

This article has 1 stretched chapter with 1 quote by Richard Nixon.

 

 

3

Bibliography

Source:

http://www.motherjones.com/news/feature/2002/11/ma_148_01.html

Author:

Koerner, Brendan I.

Title:

Lie Detector Roulette

Date of retrieval:

25 April, 2007

Brief Summary:

It has 26 descriptive paragraphs and 1 medium sized picture of Jeff Stephens hooked up to a Polygraph.

 

 

4

Bibliography

Source:

http://antipolygraph.org/lie-behind-the-lie-detector.pdf

Author:

Maschke, George W. and Scalabrini, Gino J.

Title:

The Lie Behind the Lie Detector

Date of retrieval:

25 April, 2007

Brief Summary:

This book has 219 pages.

 

 

5

Bibliography

Source:

http://www.epic.org/privacy/polygraph/

Author:

Electronic Privacy Information Center

Title:

Polygraph Testing

Date of retrieval:

27 April, 2007

Brief Summary:

This article is awesome with 7 sections.