in the neighbourhood of the primary accused. A team of officials, accompanied by a team of forensic experts, went to pick up possible evidence for tests. The police revealed that the doctor had been accused of a similar crime in 1998, although the court had absolved him the same year. There was a second raid a few days later. The police were, however, cautious with the news reports suggesting the accused committed cannibalism even before the polygraph tests had barely begun. They were "aghast" when they learned of media reports that one of the accused had confessed to the consumption of the victims' livers and other body parts. Such a possibility was not ruled out by the investigating team, considering the amount of brutality the duo had allegedly committed on the victims. Brain mapping and narco analysis The accused duo were brought to the Directorate of Forensic Sciences in Gandhinagar city in order to undergo brain mapping and polygraph tests on 4 January 2007 and narco analysis five days later. The police director told the scribes that both the accused had been cooperative during the tests and examinations. A senior director of the institute announced the conclusion of the extensive tests and declared that a conclusion had been drawn. Surinder Koli had confessed to the crimes and had given his employer a clean chit saying that he was unaware of Koli's actions. Surinder Koli also revealed that all deaths had taken place through strangulation. He would then rape them before taking the bodies to his personal washroom and dismembering them. Pandher was declared to be a womaniser and depressed. CBI investigation After four days of discourse and mounting pressure from the Government of India, the Uttar Pradesh Government decided to hand over the inquiry to the Central Bureau of Investigation. The notification came after the Department of Personnel and Training, which governs the CBI, sent a letter to the state government making a proper request for a probe by the agency in line with the prescribed norms. The two accused were taken to the CBI headquarters in Mumbai Jail on the night of 11 January 2007, a day before the investigation was to be transferred to the Central Bureau of Investigation. The CBI continued its investigation and discovered three more skulls and human remains at the site of the serial killings. The investigators searched the drains outside the house and