The Calcutta High Court has directed the CBI to produce the case diary related to its investigation into the rape-murder of an on-duty doctor at RG Kar hospital. The court questioned the CBI about the possibility of gang rape or destruction of evidence in its probe. The parents of the victim, who are petitioners in the case, have requested a court-monitored investigation, alleging a larger conspiracy behind the crime. The CBI has already filed a charge-sheet in the case, leading to the conviction and life imprisonment of Sanjay Roy, a former civic volunteer, for the crime. However, the court has sought clarification from the CBI on whether it considered investigating the crime under Section 70 (gang rape) of the Bharatiya Nyaya Sanhita (BNS).