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Are polygraph tests reliable? Why or why not? Do you believe they should continue to be...

Are polygraph tests reliable? Why or why not? Do you believe they should continue to be used in the private sector and during police investigations?

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Polygraph tests are reliable and mostly they are used in all forensic and criminal investigations.A polygraph is a lie detector which is most often used in the investigation cases where the criminal refuses to cooperate with investigation proceedures.It has been noted that the polygraph has 90% validity in all cases.However one is advised not to take a polygraph test without the advise of the attorney and under direct instruction of any law enforcement agencies.It has been noted that some can tamper with the results when it comes to final verdict.With the certified skilled examiner polygraph can be accurate at detecting deception.The examiner must rely on the subjective interpretations of the test.If there is tension between the examiner and the subject it can affect the polygraph results involving more stress.

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