The team examined the bullet injuries on the bodies and also spoke to forensic experts who conducted the autopsies. The hospital authorities also showed to the team the videos of the autopsies conducted late on Friday.
The investigating officials of the human rights body also gathered other details from the administration. They later recoded the statements of the families of the four deceased. The team then left for Chatanpally near Shadnagar town where the police gunned down the accused in the alleged exchange of fire.
It is likely to gather details of the police officers involved in the incident. The NHRC on Friday took cognizance of the incident and ordered an inquiry. The human rights body said that the encounter was a matter of concern and needed to be probed carefully.
It asked the Director General (Investigation) to immediately send a team for fact-finding and on-the-spot investigation. It had said that the team of the Investigation Division of the Commission will be headed by a Senior Superintendent of Police (SSP).
The human rights body also felt that the police personnel were not properly alert and prepared for any untoward activity by the accused on the spot, which resulted in death of all the four persons.
"The deceased had been arrested by the police during investigation and a judgment in the matter by the competent court was yet to be pronounced. If the arrested persons were actually guilty, they were to be punished as per the law pursuant to the directions of the competent court," the NHRC said.
Meanwhile, a case in connection with Friday's exchange of fire was registered at Shadnagar police station. The police booked the case on a complaint by Assistant Commissioner of Police Surender Rao, who was the investigating officer in the gang-rape and murder case.
The clues team of the police with the help of bomb disposal squad gathered more clues from the scene. With metal detectors, the police personnel scanned the field to trace the bullets which may be lying there.
The police claimed that the accused attacked the police personnel and two of them even snatched weapons and opened fire, forcing the police to retaliate. Cyberabad Police Commissioner V.C. Sajjanar said that all the four died in retaliatory fire. Two policemen were also injured, but these were not bullet injuries.
The incident occurred early Friday when the police team had taken the accused to recover the victim's mobile phone and watch which they had hidden near the place where they set afire the woman's body on the intervening night of September 27 and 28.
The accused had gang-raped and killed the veterinarian near the outer Ring Road at Shamshabad on the outskirts of Hyderabad and dumped the body and set it afire near Shadnagar. On September 29, the police arrested two truck drivers and two cleaners in connection with the case. The next day they were sent to judicial custody while the police took custody of the accused on December 3 for interrogation.