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Polygraph Code

■ polygraph does not reflect the lies, but the truth test

■ The more educated people, lie the more easily measured out

■ subjects who do not understand polygraph principle, the effect is not ideal

■ polygraph results are not used as evidence in the case, only an auxiliary

■ polygraph is not always right!

He is not a murderer? Did he lie? Through a special set of questions and answers, the polygraph can find out from your body's reaction. What this approach is, in the end how this machine work? Yesterday, the Provincial Public Security Bureau chief Jin Dengwei audiovisual technology at eleven for reporters to explain its mystery. However, in these polygraph story, most likely not that expensive machines impress you, but trained officers with experience of mental Running out of capacity - Sometimes, his psychological analysis,peuterey outlet, and more accurate than the machine!

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First as objects do "skin test" higher culture lie the more false

Do polygraph, the first step quite particular - need to do a little test, so that any object to write a number, and then asked him to write is not this figure. If the person on the issues raised by the examiner react in order to do a polygraph test,http://www.z-tech.jp/bbs1/sunbbs.cgi?mode=form&no=5119&page=1, which do first like a skin test prior to injection. Let us also to "skin test" for example, to understand the polygraph practices.

Measure multiple parts of the body

Panic began measuring object sitting on the armrest of a chair (let subjects mental relaxation),http://sportsfan.jpn.org/cgi-kban/sunbbs.cgi?mode=form&no=101&page=1;, facing a white wall (allowing subjects eliminate distractions), the complete set of equipment worn on his chest, abdomen , arms, fingers, etc. 4 parts (body, respectively, is detected). Polygraph examiner sat side object, observe the results from the computer.

Except for measuring the truth lies

Sit,moncler sito ufficiale, the polygraph examiner asked: "Do you write numbers are 1 2 3 4????" Measured object were "yes" or "no" answer, examiners repeatedly asked three times. If the object is written in three, and every time he was asked 3:00, the curve will be increased. Then the polygraph it useful, but if his reaction to each number are the same height of the curve are the same, then prove that this person does not respond to the instrument.

It can be seen, in fact, not a right polygraph lie respond, but the truth has a reaction. The polygraph is also more in accordance with this quiz manner - that examiners give you questions, you answer.

The higher the better identify cultural

"Not everybody can do the test results are good, also vary." In addition to measuring the true eventuality false, Jin Dengwei there is an unexpected conclusion - that the higher the education level testing more people who have a role. Probably because of this, every time the measured object polygraph, must be told in advance the principles of the other party of the instrument, to make him understand what the function of the instrument, how it is, and then start the test, "If Since he did not understand the principle of this instrument, measuring out the effect is not ideal. "

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Widow accept polygraph say "kill," she responded

Longquan found on a roadside has a neck Le Hen body of a man,http://sportsfan.jpn.org/cgi-kban/sunbbs.cgi, found the deceased's wife Ms. Zhang did not show pain,piumini moncler, shouting to the police investigation of the neighbors,http://www.wildwinds.com, the very fact that the police have to go to find out exactly what to ask , a move aroused police suspicion, but can not conclude that the very fact that the killing of her husband's murderer.

So, Jindeng Wei Ning Huijun mention the psychological and partner testers singled this woman came to the scene. First,abercrombie france, the personal circumstances of the case and the very fact that a certain understanding, Jindeng Wei began testing. "You know the murderer a few people? 1? 2? 3?" Machine showed that women on the "2" reaction. "Do you have done illegal things, killing theft robbery???" At this time, the machine clearly shows - her "kill" the word has a reaction!

After two times the test results are also consistent with this, so Jin Dengwei judgment: Although not sure whether she was murder, but at least proved that the very fact that there is great suspicion. With the test results, police have investigative direction,moncler outlet, after the increase in the intensity of the trial,jordan pas cher, the very fact that after just a few hours,http://90v-birds.com/tl-r/cgi/aska-in/aska.cgi, and finally truthfully confessed: her lover conspire to cheat her husband out of the car to be strangled,tn pas cher, then postmortem roadside.

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Accuracy rate of 98% body details will betray you

Provincial Public Security Bureau chief of technology at the pan is the province of the first polygraph examiner, since 1999,hollister sale, the introduction of polygraph technology in Sichuan, he began a history of mental Running with liars.

11 years, he traveled the whole River with the instrument, do not remember how many pieces of the case, measuring the number of individuals,mulberry outlet, just remember that the test result accuracy rate of 98%. "Some people feel amazing, but I believe this lie detector technology." Jindeng Wei said.

Polygraph machine really that accurate? Jin Dengwei convinced of self-justified. Person's mouth can lie, but the body does not lie. Not only to make the new generation of lie detector speed is determined from the heart, it can be from several parts of the upper and lower body movements comprehensive judgment, these areas include the hip action, blood volume, finger skin and other eye can not detect part.

Therefore, even if the liar think it is difficult to escape the polygraph intentionally concealed palm. Polygraph not directly solve the case, but we can provide real answers for handling unit direction, applying psychological pressure on people tested - let him earlier explanation.

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When in doubt, I have the final say polygraph

"While many doubts specify a suspect, polygraph tests are not 100 percent accurate,http://portal.dl.saga-u.ac.jp, we must rely on the police to a comprehensive analysis." said that once the machine was almost wronged man, but fortunately he was ruled out by experience suspects.

2008,louboutin, Meishan manager of a company car stolen laptop on the company,http://deaikeisearch.com, there are entire company's internal information and customer data, are secret documents, valuable. Investigation, the manager reflects a clue to the police: a man named Wang Qiang had his men (a pseudonym) employees money to help him buy a computer, which also re-copy files from the employee to the new computer. Wang Qiang also special requirements let other people know. Is the employee stole the computer reselling company secrets - he was very suspicious.

The psychological test results also show thereafter - although not directly measured Qiang modus of the truth, but could not rule out that he's a suspect in that case. Get the results,http://www.kitanet.ne.jp/~ya-tmt/simo4/joyful.cgi, Wang Qiang was nearly as suspect. Let Jin Dengwei until his sentence reconsidered. "Hey, it seems I was not watching the World Cup." Qiang said. "Why?" Jindeng Wei asked him. "Because you said I had suspected, that went off a couple of months out of the World Cup is over, I do not see become a thing." Jin Dengwei robust, with years of experience, if it is true suspects at this time is can not say that this is the case, it is impossible for the World Cup interested - because his heart had more fear, and stress. "Based on my analysis, this person is not a thief stole a computer." Jindeng Wei made their own judgments.

A few days later, Meishan police Danghuo a dedicated car theft gang articles, and this company is the group that the computer is stolen. At this time, we came to the understanding, Wang Qiang was really just to let the manager is suspected of lying.

Post reporter Xiao Shu Yun photography Hua Xiaofeng

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Update History Sichuan polygraph
Machine's testing capabilities in 1999 the first generation of multi-channel PG7 psychological test instrument through respiration, galvanic skin touch of the finger, blood pressure tests in 2002 on the basis of the second-generation instrument on behalf of the former increased action determination, can grasp the hips, feet movements 2003 third-generation instrument to increase the video, examiners can increase the measured volume of the object observed by monitors subtle facial expressions 2006 fourth-generation instrument