Lie detectors are used in administering justice in the courts of law. The information that is obtained by the private investigator when using the polygraphs is very important in helping any case to come to its conclusion. Criminals are always nailed when subjected to the lie detector tests. Organizations and firms also use these detectors to nail some of the employees that are not loyal to them. It is however not mandatory to take the test though it is vital in exempting yourself from a case. Courts and other judicial structure tend to accept evidence that is brought forward from the use of the polygraphs.
Intelligence Services
Polygraph admissibility is used mostly in intelligence services to get information that a suspect may not be conceding. Intelligence services of different countries are using the polygraph to counter terrorism and other vices in their society. Professional private detectives and investigators have been tasked with obtaining such kind of information using these tests. It takes perfect interpretation skills to come up with the best conclusion after the skill so that you do not convict an innocent person. Are polygraph tests admissible in court? Is a complicated subject. When the police department finds crucial information from a suspect that can be used to convict them, they will use it at the court. Conversely, lie detectors are mostly used in private matters.
The Government
Governments have been known to use this system to put in check the officials and other governmental officers. Sometimes the officials are required to take lie detector test to prove their innocence and restore credibility in the offices they hold. It is an effective way of running the government institutions and providing an oversight to the people running these institutions. The polygraph tests can also be used in vetting processes of the officials. It is a good way of digging into the history of a person to see whether you can trust them with the office or not.
Screening
This is basically the process of extracting information from suspects. There are different methods that can be used to get information from such people and the use of polygraph test is one. Businesses and commercial enterprises use this technique to screen their employees before they offer them the job. The complaints that are sometimes raised by the clientele can be solved with the use of the lie detectors. Employees of businesses have had their jobs saved thanks to the use of this technique.
How Accurate Are The Polygraph Tests?
The accuracy of these tests has been determined to be in the range of 75-95%. This means that they are credible to be used in the corridors of justice. The accuracy depend on a lot of factors including how the subject presents themselves and nervous they are in answering the questions posed. Although some people have criticised the use of the detectors to gather evidence, it is still being used up to date. The outcome all depends with how the subject handled himself or herself during the test.
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Can The Test Results Be Relied In Court Of Law?
As much as the polygraphs are accurate, they should be supplemented by other investigative techniques. Polygraphs are just supposed to provide justify or reject the prior information that has been collected from investigation. The lie detectors should be handled by professional investigators so that reliable results can be presented to the court for evaluation as the evidence of a case.