Kolkata, September 12: CBI sleuths on Thursday collected the dental impression of Sanjay Roy, arrested prime accused in the rape-murder incident at state-run RG Kar Medical College and Hospital, as part of their investigation, an officer said.

Roy's dental impression, which could play a vital role as evidence in the case, was collected during a questioning session by the central agency detectives at the Presidency Correctional Home here, he said. RG Kar Doctor Rape-Murder Case: Junior Doctors Vow To Continue Sit-In Till All Demands Are Met.

"There were bite marks on the body of the woman and the post-mortem report has mentioned those. Our idea is to match those with the accused's dental impression," he told PTI. Kolkata Doctor Rape-Murder Case: CBI Team Reaches Presidency Jail To Question Accused Sanjay Roy.

Roy, a Kolkata Police civic volunteer, is the only person to have been arrested in the case so far. The CBI is probing the incident following the Calcutta High Court's directive.

(The above story is verified and authored by Press Trust of India (PTI) staff. PTI, India’s premier news agency, employs more than 400 journalists and 500 stringers to cover almost every district and small town in India.. The views appearing in the above post do not reflect the opinions of LatestLY)