It is a human devised machine that is used for detecting the lie and finding out the perpetrators. Individuals tell lies and cheat others for some reasons. Regularly, lying is a safeguard instrument used to maintain a strategic distance from the issue with the law, managers or expert figures. In some cases, you can tell when somebody’s lying, however different circumstances it may not be so natural. Polygraphs, ordinarily called “lie indicators,” are instruments that screen a man’s physiological responses. These instruments don’t, as their epithet recommends, distinguish lies. They can just identify whether misleading conduct is being shown. In order to find out the reason behind such a lie as told by an individual, this human-made machine has been made. It is quite famous among the intelligence units and other groups.
AREAS OF EXPERTISE
In case of marriage breakdown or any sort of infidelity where one of the individuals is doubted to have an illicit relationship then, in that case, the lie detector test can be used in order to find the truth.
It is also used for detecting the perpetrator involved in any such crime and also curbing the crime. In case of terrorism or burglary or theft or murder. Suppose, a person has committed murder but he is continuously denying the same then with the consent of the person, he has to undergo the lie detector test in order to prove his if he’s innocent or if he is guilty of the accused act.
ACCURACY OF THE TEST
The lie detector test has to be conducted by an expert and in order to know the accuracy of the test, the person conducting the test shall be a physician or shall have medical knowledge about the same. Here are the various reasons through which the accuracy of the test can be judged.
The person who is being examined must comply with all the requirements that have been mentioned before undergoing the test. Only then the result that is provided by the machine will be in compliance with the test.
The place where the test is being conducted shall be devoid of any such disturbance. Only then it would be easy for the physician and the person who is undergoing the test to come to a valued conclusion that is if the person is involved in the crime or not. Most of the time even after all the steps are taken care of the result is quite different than that of reality.