Lie Detector Test Legal Meaning and Definition

Here is a simplified definition of the legal term Lie Detector Test.

Lie Detector Test (noun)

A Lie Detector Test, also known as a polygraph test, is a technique used to determine whether a person is telling the truth or lying. It works by monitoring and recording physiological responses such as blood pressure, pulse, respiration, and skin conductivity while a person is asked a series of questions. The assumptions is that deceptive answers will produce physiological responses that can be differentiated from those associated with non-deceptive answers. However, the accuracy of this method isn't foolproof; skilled or practiced liars might still pass the test.