Doctor's rape-murder: Polygraph test on main accused, 6 others begins

The lie detection tests on the main accused and six others in the alleged rape and murder of a trainee doctor at Kolkata's RG Kar Medical College and Hospital began on Saturday, officials said.

The polygraph test on Sanjay Roy, the main accused, is being conducted in the prison where he is lodged, while the remaining six, including former principal Sandip Ghosh and four doctors who were on duty during the night of the incident and a civic volunteer, are undergoing the test at the agency's office in Kolkata, they said.

Ghosh arrived at the CBI's office at CGO Complex in Salt Lake on Saturday morning for the ninth day consecutive day, and was then taken for the test, the officials said.

Those undergoing the lie detection test include two first-year postgraduate trainees, as investigators allegedly found their fingerprints inside a seminar hall at the state-run medical facility where the medic's body was discovered, an official said.

A team of polygraph specialists from the Central ..