What exactly happens during a lie detector test?

If you are a big fan of detective TV series, you have seen at least one scene in which policepersons or detectives have used lie detectors. People are using these instruments every time they want to find out whether a person is lying regarding a certain aspect or is actually telling the truth. However, what you might not know is what exactly happens before, during and after the private lie detector test. In case you are interested in finding more about the truth behind these lie detectors, you should read the article below.

Finding the right examiner

Before undergoing a polygraph test, no matter what the reason might be, it is highly important to look for a professional and experienced examiner. It is recommended to do some thorough research online, because you can find there numerous polygraph examiners that have managed to make a name for themselves in this domain. If you choose the best one, you can be sure that there is  no way the polygraph test can be beaten.

The first phase

First things first, you should bear in mind that the lie detector test can take up to three hours and that it is divided into different phases. The first one is designed in a way that will help the examinee get accustomed to the polygraph and the questions. During this phase, the examiner can even present some of the questions he or she is about to ask during the second phase of the test in order to discuss them with the examinee.

The second phase

The second phase of the lie detector test is also the most important one, because this is where the magic happens. During this phase, the examiner asks the examinee a series of questions that are meant to help the former one determine whether the latter is telling the truth or not. This is the moment when all the necessary data is collected. During this phase, the examinee has various things attached to the body, such as breathing tubes, blood pressure cuffs and so on, which send impulses to the lie detector itself, thus making it “read” the physiological reactions of the examinee’s body.

Interpreting the test

This is the last phase of the test. After all the right questions were asked and the patient answered them, the attachments previously mentioned are removed and the examiner can start his or her work, which implies interpreting the readings from the test. This is the moment when all the answers are interpreted and a final thought is presented.

All in all, this what happens before, during and after a lie detector test. In case you are interested in taking such a test or want someone you know to take such a test due to various reasons, it is recommended to work only with professional examiners. It is highly important for the examiner to be professional and to have vast experience in the domain, because this way you can be sure the test is extremely accurate and reliable.