Rural police on Wednesday faced a major blow in the car bomb blast case after a local court denied the permission for carrying out lie-detector, narco-analysis and brain-mapping tests of three accused.
The blast took place in a Maruti Swift Dzire car at Dugri village near here on December 5, killing one person and injuring another.
The police wanted the tests on Jagmohan Singh of Gadaipur, Hardeep Singh of Bholath and Harbhej Singh of Jiwan Nagar in Sirsa. They had moved an application on Tuesday in the court of judicial magistrate (first class) Mamta Kakkar in this regard.
On Wednesday, three of accused were brought from the jail and produced in the court by DSP Mandeep Singh and SHO Maqsudan police station Rupinder Singh.
The police through prosecution claimed that to get the clear picture of the entire conspiracy of this bomb blast case, the accused are needed to undergo these tests as they were not helping the cops in the interrogation. They were to be taken to the Central Bureau of Investigation (CBI) headquarters in New Delhi if granted permission.
The defence consel argued that as per ruling of three-judge bench of Supreme Court in 2010 had held unconstitutional the use of narco-analysis, brain-mapping and polygraph tests on accused, suspects and witnesses without their consent..
He contended that as per the bench’s ruling, the compulsory administration of the impugned techniques violates the right against self-incrimination.
After hearing the arguments, the court refused to sanction the same. SSP Harmohan Singh Sandhu said the accused did not give their consent for the tests.
A polygraph test (popularly known as a lie-detector test) measures and records several physiological indices such as blood pressure, pulse, respiration and skin conductivity while the subject is asked to answer a series of questions.
The brain-mapping test is done to map the brain to reveal a sense of guilt. It also helps to know whether a suspect’s brain matches information with that of the crime scene findings.