JThe Shocking Lie DetectorJ

By Charm Bracelet


Hey have you ever told a lie. Well a lot people tell lies about really serious stuff. Such as robbers. You are probably wondering how the police find the criminals. Well I will tell you how they know if you are lying or not. They find out if you are lying by machinery. Not just any kind of machinery but the lie detector. Yes, it is true. It is real. But you would have to read my report to see if it really works and if all people trust it. Well do you know what a lie detector is and the history of the lie detector and how the lie detector works or any interesting facts about the lie detector? Well if you donŐt read this report.


What a lie detector is.

Who, when and why was the lie detector invented.  According to wiki answers and wikipedia. A lie detector detects if you lie. By the rate of your heart and blood pressure. John A. Larson invented the lie detector while he was in collage. Wow who knew that the person who invented the lie detector was so young? The lie detector instrument designed to record bodily changes resulting from the telling of a lie. I think this machine is very helpful to the police because if you tell a lie then you can tell. Well I did not until I found it on the Internet.


Names for the lie detector.  According to Cristin Popa. NO, the lie detector and the polygraph are not the same. Because the reason the polygraph is not a lie detector is that what it measures--changes in heartbeat, blood pressure, and respiration--can be caused by many things. Nervousness, anger, sadness, embarrassment, and fear can all be causal factors in altering one's heart rate, blood pressure, or respiration rate. Having to go to the bathroom can also be one factor. Another name for a lie detector is a Polygraph. But they are not the same thing the lie detector is just an easier way of saying polygraph. So a lie detector and a polygraph are not the same thing. I thought they were the same thing. But they are not. So people donŐt like to waste their breath so instead of saying polygraph they say lie detector.

In other places what is the lie detector used for?  According to Cristin Popa. In California and many other states, the results of polygraph tests are inadmissible as evidence in a court of law. This may be known because polygraph test are unreliable. Polygraphs are in some countries used as an interrogation tool with criminal suspects or candidates for sensitive public or private sector employment. Wow in other states and countries it is used a something else.

Why the lie detector was invented.

History of the lie detector.

Where and when and why the lie detector invented.  According to Cristin Popa and Radyhum. It is mostly used in the FBI and the CIA also the police and government. They use it so that they can tell if you are looking for a job or if you are a spy. James Mackenzie invented one in 1902. But his was not as successful as John LarsonŐs in 1921. His was successful because he has sold them all around the world. The American Civil Liberties Union supports the lie detector the most. Because  "the purpose of rendering a diagnostic opinion regarding the honesty or dishonesty of an individual."  Wow I just learned three things. I know you have too.

Why the lie detector invented.  According to Cristin Poppa And The Colombia Encyclopedia. So they know they are not spies. Also that they are really looking for a job because they could be spies from different countries and tell their boss our secrets. Wow so the lie detector was invented to help out our government.



How the lie detector works.



How the lie detector works.  According to Cristin Popa. Yes, this is that they think the test will frighten away liars and cheats who are seeking jobs, or it will frighten confessions out of those accused of wrongdoing. In other words, the users of the machine don't really believe it can detect lies, but they know that the people they administer it to think the machine can catch them in a lie. Yes, because another reason for the polygraph's popularity is the pragmatic fallacy factor: it works! Case after case can be used to exemplify that the polygraph works. There are the cases of those who failed the test and whose lying was corroborated by other evidence. So there is evidence that the lie detector works.

Do you trust the lie detector? According to Cristin Popa and Kevin Bonser. No, all people do not trust the lie detector. Some people, such as Senator Orrin Hatch, don't trust the polygraph machine, even if used by an expert like Paul Minor who trained FBI agents in their use. Mostly on criminals also on many government entities, and some private-sector employers, will require or ask you to undergo a polygraph exam prior to employment. So do you really trust the lie detector? I donŐt know about you but I sure do.


Other interesting facts about the lie detector.

Can you or fool a lie detector test.  According to Cristin Popa and Some times you can because as a person is questioned about a certain event or incident, the examiner looks to see how the person's heart rate, blood pressure, respiratory rate and electro-dermal activity (sweatiness, in this case of the fingers) change in comparison to normal levels. Well I hope you learned a few things to day.

Can you fail a lie detector test?    According to Kevin Bonser, yes. There are the cases of those who failed the test and whose lying was corroborated by other evidence. There are the cases of those who, seeing they are failing the test, suddenly confess.


Well today I know you learned a few things about the lie detectors History How it works what it is and other interesting facts about the lie detector. But even if you already know all of this I hope you enjoyed it.


DonŐt Tell LiesL