What Is A Polygraph?
How Does It Function In Lie Detector?
The examiner can either check the
changes in the signs during the test or after the test. Generally, the rapid
change in heart rate, blood pressure, and perspiration indicated that is the
person is lying.
There is one thing that is not true
about the lie-detecting test, i.e. it is always right. It is not true,
different people react differently to lying, and the examiner’s intuition can
also be subjective, these reasons can fool anyone. Hence this test is not
perfect or super accurate. However, if an examiner is highly trained, he or she
can detect the lying with higher accuracy. Although it is still cannot be
completely trusted.
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