Polygraph, which the general public mistakenly knows as the lie detector, is a device that can’t detect or record lies or falsehoods, but it really measures and records psycho physiological responses:

• fear that the offender will be caught in a lie or fear of discovery;
• information on the details of the event, which are known only to the offender.

Before we decide for a polygraph test, we must know the following:

• this is a subject of the voluntary principle (the person who will be tested, must consent to this testing;
• polygraph results don’t have a probative value for the further proceedings in the courts;
• not all people are suitable (polygraph can be used only on mentally and physically healthy people between 16 and 60 years old.
• it’s an extremely stressful experience;
• it takes place in several stages (pre-test interview, adaptive test, operational test, analysis and preparation of the opinion), so we need to take enough time do the test;
• it is primarily designed to protect the innocent and for the exclusion from the process and not so much for repression and search for the offender.