Cops seek polygraph test for suspects in Parliament security breach case

THREE persons allegedly involved in multiple cases of cow slaughter have been arrested, a senior police officer said on Thursday.

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THE Delhi Police on Thursday approached a court seeking permission to conduct a polygraph test of all the six people arrested in connection with the Parliament security breach case.

A polygraph test, commonly known as a lie detector test, is a procedure in which physiological indicators of a person such as blood pressure, pulse, and respiration, are recorded while the alleged is answering a series of questions. For every answer, the forensic scientists would share their opinion, based on readings, whether the accused person was truthful or lying.