Kolkata rape-murder: CBI seeks AIIMS experts’ help, Kolkata police assistant sub-inspector’s polygraph test

Kolkata rape-murder case: The Central Bureau of Investigation (CBI), as per reports, is consulting experts from AIIMS Delhi to strengthen its case against Sanjoy Roy, the main accused in the Kolkata rape-murder case. The agency plans to verify DNA and forensic reports to determine if Roy acted alone or if others were involved in the crime.

In addition to this, the CBI is also seeking permission to conduct a polygraph test on Kolkata police assistant sub-inspector Anup Dutta, who is suspected of aiding Roy. 

Strengthening case against Sanjay Roy

Roy, the main suspect in the tragic case at RG Kar Medical College and Hospital, had confessed to the heinous crime but later claimed innocence in court.

His alleged victim, a 31-year-old post-graduate trainee doctor, was attacked while she resting during a 36-hour shift. Her body was discovered on August 9 with severe injuries. 

CCTV footage had captured Roy entering the seminar hall where the assault took place. He was arrested the following day, with recent injuries suggesting a struggle.

However, the victim’s family, as per news agency PTI, believes multiple individuals were involved, although no evidence of gang rape has been found yet. 

Lie detector test

The CBI has already conducted lie-detector tests on Roy, the former principal of the medical college, and four other doctors who were on duty with the victim.

Now, the investigative agency the CBI is seeking permission to conduct a polygraph test on Kolkata police assistant sub-inspector Anup Dutta.

Dutta allegedly provided favours to Roy, and the agency is investigating whether he helped cover up the crime. The court will decide on the polygraph test after obtaining Dutta’s consent.

The CBI has also employed Layered Voice Analysis, a new deception detection technique that identifies stress and cognitive cues in voice properties, on the former principal Sandip Ghosh. Although these tests can provide leads, they are not admissible as evidence in court.

(With inputs from agencies)

Moohita Kaur Garg

“Words are, in my not-so-humble opinion, our most inexhaustible source of magic. Capable of both inflicting injury and remedying it.” — Albus Dumbledore (J. K. R

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