EXCLUSIVE: Narco, Polygraph Tests Will Extract Truth From Aaftab, says Delhi FSL Asst director

| Updated: 22 November, 2022 11:04 pm IST

The two tests – Narco and Polygraph Aaftab Amin Poonawala, accused in the Shraddha Walkar murder case will have to undertake will help the investigators in extracting the truth from him, Delhi’s Forensic Science Laboratory Assistant Director Sanjeev Kumar Gupta said Tuesday in an exclusive interview to The New Indian. 

While talking to The New Indian Gupta said both the tests are lie detector tests which can extract the truth from the accused.

“Both the tests are a way of extracting the truth. The polygraph test is conducted when the person remains conscious. And we extract information from him. And a Narco test is conducted in the state of his subconsciousness. It is believed that in that condition he will reveal the truth only. Therefore, both the ways are for extracting truth,” said Gupta.

On Tuesday evening, Aaftab was brought to the FSL office in Rohini where the initial process of conducting the polygraph test started by the team of forensic experts. A team of Delhi Police brought him in a private vehicle.

After Polygraph, which is being conducted at the FSL office in Rohini, Narco test will be conducted within two – three days at Baba Bhim Rao Ambedkar Hospital. In Narco, Aaftab will be injected with a serum called sodium pentothal. This chemical sedates the accused through which he gets neutralised and is believed to speak the truth.

Gupta further said it was important to ascertain some parameters, therefore, first polygraph and then Narco test will be conducted on Aaftab.

Polygraph is a device driven exercise where several physiological indicators like blood pressure, pulse and respiration are recorded during the series of questions.

“Both the tests will take more than one week. Narco tests sometimes get longer,” said Gupta.

On the question of how these tests will help in the case or during the filing of the chargesheet, Gupta said, “both these tests will help the investigators in their case.”


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