PATNA, Jan. 19 -- With no breakthrough yet in the medical aspirant's mysterious death so far, the Special Investigation Team (SIT) of the Bihar police has intensified probe into the case on the specific points recommended by the police headquarters, said a senior police official associated with the investigation.

Though the police are convinced on the basis of death summary from doctors, who treated her, that it was a case of Benzodiazepine-opiate poisoning, they have increased the ambit of probe based on the sexual assault possibility shown in the post mortem report of the medical board of the Patna Medical College and Hospital (PMCH).

The police headquarters has sought opinion on the PMCH's post mortem report from the All India Instit...