Salwinder Singh had claimed he was kidnapped by the terrorists after his visit to the shrine and later let off as they did not know his identity. (File photo)
Senior Punjab Police officer Salwinder Singh, who is being questioned by National Investigation Agency in connection with the Pathankot terror attack probe, will undergo a lie detector test tomorrow.
After the special National Investigation Agency court today allowed it to conduct the polygraph (lie- detector) test on Mr Singh, the officials of the central terror investigation agency briefed CFSL experts CFSL about the possible questions that he can be asked.
Mr Singh, currently posted as Assistant Commandant of 75th Punjab Armed Police, had claimed he was kidnapped by suspected Jaish-e-Mohammed terrorists hours before they attacked the Pathankot Indian Airforce Station in the early hours of January 2.
He was travelling with his jeweller friend Rajesh Verma and cook Madan Gopal when the alleged abduction took place.
The terrorists had slit Mr Verma's throat, almost killing him, and set Mr Singh and Mr Gopal free before fleeing in the police officer's vehicle towards the base.
Some alleged inconsistencies in Mr Singh's statements has prompted the agency to subject him to polygraph test.
Meanwhile, the NIA has failed to have a clear view of the faces of the six terrorists involved in the attack.
The agency, which chalked out the possible route taken by the terrorists to travel to IAF base, had sought help from the public to share footages, if any, from CCTV cameras installed in their premises.
However, except for a brief coverage at a toll post, the NIA has drawn a blank, sources said, adding even that footage was of little help in carrying forward the probe.
Seven security personnel were martyred during the three-day terror siege, while six perpetrators were killed in the attack.