Two Dalit girls were found hanging from a tree in a mango orchard in Sahadatganj village of Badaun. Photo: PTI. Two Dalit girls were found hanging from a tree in a mango orchard in Sahadatganj village of Badaun. Photo: PTI.

Taking the probe forward, the Central Bureau of Investigation (CBI), which took over the probe of the May 27 alleged gangrape and murder of two teenage girls in the Katra village of Badaun district in UP, will conduct polygraph test on the victims' parents along with the accused. A local court in Badaun granted permission for it to the CBI on Monday after taking their consent.

The decision was taken after the family members of the accused alleged that they (parents of the two sisters) were changing their statements given before the police and the CBI. The CBI sleuths have been camping in Badaun's Mandi guesthouse where they had interrogated the parents and brothers of the victims on Saturday.

Babu Lal (named changed), brother of a victim who had tried to save the girls but the three accused - Pappu Yadav, Avadhesh Yadav and Urvesh Yadav - had put a revolver on his head and asked to get lost, told newspersons that the CBI had asked him and the parents of the victims so many times to agree for narco test.

"We agreed because the CBI was insisting us for it. We have no problem with it because the accused will also undergo similar tests. The truth will prevail," he said.

The test, which is based on the premise that certain parameters of the body fluctuate when a person is lying, measures these parameters of the person undergoing the test and presents to the investigators a graph which shows variation when a particular question is asked.

For the record, the report of narco test may be helpful in investigation, but it is not admissible in any court and cannot be presented as evidence to prove the charges.

Two teenage sisters were gangraped and hanged from a tree on May 27 in Badaun district of Uttar Pardesh on May 27. The case was transferred to the CBI after demands from the parents. Five accused including two policemen have been arrested so far.

The father of the one victim had alleged that police are threatening the family and had asked them to go through lie detector test.

