Explain Polygraph test.
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Polygraph Test:
A polygraph, commonly known as a lie detector test, measures physiological responses like heart rate, blood pressure, and respiratory rate to assess truthfulness. The assumption is that deceptive answers provoke specific physiological reactions. However, its accuracy and reliability are debated, and it is not foolproof. While widely used in criminal investigations and employment screenings, its admissibility in court varies. Critics argue that factors like anxiety or medical conditions can influence results. Despite its limitations, the polygraph remains a tool in assessing credibility and gathering information, but its interpretation requires caution and expertise.