Hyderabad: Super Lights, which create a high degree of illumination that can identify micro-particles from a crime scene have been used to collect crucial evidence in the investigation into the rape and murder of Disha at Shamshabad.
These lights have been used only twice before — during the investigation of the human sacrifice at Uppal in Rachakonda, and the rape and murder of a six-year-old girl at Alwal in Cyberabad.
With a court in Mahbubnagar granting police custody of the four persons accused of the rape and murder of the veterinary doctor, the Cyberabad police are said to have grilled the accused on the jail premises on Thursday.
Seven special teams have been formed to collect evidence against Mohammed, J. Shiva, J. Naveen, and C. Chennakeshavulu, who were arrested by the Shadnagar police.
The teams were given different tasks, such as collection of CCTV footage to map the movement of the accused before and after the offence, the route travelled by the victim, call data records, analysis of scientific evidence and recording the statements of the witnesses at the scene of crime.
A police team on Thursday went to Shamshabad to collect evidence from the lorry in which the body of the victim was moved to Chattanpally where it was set ablaze.
The team used the Super Lights which emit infra-red, ultraviolet and visible light of a high intensity to identify particles and stains that are not visible to the naked eye. They were able to identify dark brown-coloured stains on the left side door of the lorry cabin, stains on the floor mats in the cabin, and also hairs that are of a female.
A police official said, “Samples of the stains were preserved for forensic analysis which will help in finding whether it was blood or human secretion or traces of fuel. The hair is found to be of a female, but this can only be confirmed after DNA analysis.”
Meanwhile, it is learned that the accused were questioned in the jail premises by another team, which led to the recovery of the mobile phone of the victim that was buried close to the crime scene. However, the police remained tight-lipped and did not confirm media reports.
After receiving damning criticism from all quarters following allegations from the parents of the victim that swift action could have saved their daughter, senior police officials in the state have instructed the teams that are investigating the case to maintain confidentiality about the probe.