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Polygraph test UPSC NOTE

 Why in news

  • Five of the six people arrested by the Delhi Police in connection with the Parliament security breach on December 13 last year gave their consent before a court here on Friday to undergo a polygraph test.

  • The court also extended the police custody of the accused — Manoranjan D., Sagar Sharma, Amol Dhanraj Shinde, Neelam Azad, Lalit Jha, and Mahesh Kumawat — by eight days.

  • A polygraph test, often called a lie detector test

  • It is a procedure that measures and records physiological responses such as:

    1. Blood pressure

    2. Pulse rate

    3. Respiration

    4. Skin conductivity (sweating)

  • It's based on the assumption that these responses will change when a person is being deceptive.

  • Pre-test interview: The examiner discusses the test and types of questions to be asked.

  • Sensor attachment: Sensors are attached to the examinee's body to measure the physiological responses.

  • Questioning: The examiner asks a series of questions, including both relevant (related to the issue being investigated) and control questions (not related to the issue).

  • Data analysis: The examiner analyzes the physiological responses to determine whether they indicate deception.

  • Polygraph tests are not 100% accurate. 

  • Their accuracy is estimated to be around 80-90%, but this can vary depending on the examiner's skill, the examinee's cooperation, and other factors.



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Learnerz IAS | Concept oriented UPSC Classes in Malayalam: Polygraph test UPSC NOTE
Polygraph test UPSC NOTE
Learnerz IAS | Concept oriented UPSC Classes in Malayalam
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