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You might have seen the demonstration of lie detectors in movies. The wire of the devices makes a relationship between the lie detector and the person being tested.

According to the latest studies, the accuracy of a lie detector varies between 70% and 95%. Let’s now have a look at a few of the benefits offered by this machine.

Benefits and Usage

Since lie detector tests are rather popular, a growing number of people have started to use them. Nowadays, they are used for social research projects.

Often, lie detectors can have an impact on how the subject gives answers to the questions. While they are not used solely to find out the truth, they do assist document changes in the physiological indices of the subject. So, the experiments are done together with before and after interview evaluations.

It’s important to note that some companies also use polygraph tests. The tests are done in order to screen prospective personnel for Davie Wildlife Removal.

Another common use of these devices involves the evaluation of the statements given by the suspects and witnesses. Often, they are used by attorneys, police offices, and prosecutors. Additionally, law enforcement agencies also use them to track the post-conviction offenders. However, it’s important to say that the machines aren’t utilised to determine whether the subject is truly guilty.

It’s interesting to remember that toy lie detectors are also quite popular with kids. Interestingly enough, these toys are based on similar algorithm and might give a mild electric shock to the subject when he tells a lie. However, it is important to keep in mind that the results might not be accurate.

Negative Remarks

Polygraph tests are quite popular, but the results of those tests can not be accurate. The reason is that not everyone will give the identical reaction in a situation. As a result, the physiological indices of a person could be different from another test subject. That’s the reason this device isn’t considered 100% reliable.

Also, polygraph tests aren’t worth it. The machine may provide misleading results. While the authorities will be busy proving that the subject is guilty, the real culprit may go out of the reach. As a result, they have to do the exam all over again, which will take a whole lot of extra time.

Additionally, the tests can cost a great deal of money. Aside from the price tag of this machine, it will cost extra money to hire a qualified professional for the interpretation of the evaluation results.

Benefits and Uses of a Lie Detector

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