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A joint team of Punjab and Delhi Police today interrogated Khalistan Liberation Front chief Harminder Singh Mintoo, who was arrested at Nizamuddin railway station here after escaping from Nabha Central jail.
During the interrogation, Delhi Police's Special Cell sleuths and Punjab Police officer cross-verified the facts about the daring jailbreak case on November 27.
"Mintoo is a cool-headed and tactful person. He had told us many things but maintained silence on many. Whatever he has told us, we will check with Punjab Police to get more details about the jailbreak case and how it was planned and we will also be questioning him about where the others could be hiding," said a senior police officer privy to the probe.
The Punjab Police team arrived here this evening.
It has emerged during the interrogation that Mintoo had access to mobile phone in the Nabha jail, sources said.
"He is claiming it was a common cell phone used by other inmates also," the source said.
Mintoo said he used the phone to "call only his family members" but sources said police will examine through the Call Detail Records if he was in contact with ISI.
"Also we will be examining if he had access to social media and Skype as one of the escapees was a regular on Facebook from inside the jail," a source said.
Mintoo's claim that he "tagged along" when others were escaping will also be verified, the source said.
"He will also be questioned whether he was planning to revive the activities of his outfit. The police will also be questioning him whether Delhi was only a transit point or there were some other plans," the source said.
Yesterday, police had said Mintoo was planning to move either to Malysia or Germany and there are chances he was planning to shift his network to either of the two countries, sources said.
Meanwhile, several teams of Delhi Police, including Special Cell and Crime Branch, are looking for leads that could throw any clue on Kashmeer Singh, who had accompanied Mintoo to Delhi and separated from him at Kashmere Gate bus stop, said a senior police officer.
Railway stations, bus stops, guesthouses and other possible hideouts are being scanned for Kashmeer Singh, who like Mintoo, had trimmed his beard to conceal his identity, he said.
The 48-year-old was nabbed from Nizamuddin railway station's parking area, marking the second arrest in the sensational jailbreak case of November 27 morning in which eight people had stormed the prison to free six inmates -- two militants and four dreaded criminals.