Pathankot/New Delhi, Mar 29 (ANI): Families of security personnel who were killed in the Pathankot airbase attack hoped for a fair inquiry by the Pakistan's Joint Investigation Team (JIT) The Pak JIT has been issued 15-day visas to complete its probe into the Pathankot airbase attack. Shobha Singh, wife of slain soldier Fateh Singh, expressed hope for a thorough probe. This is the first time that a Pakistan investigation team is in India to probe a militant attack. Surinder Singh, son of slain soldier Kulwant Singh added that the culprits should not go unpunished. Meanwhile, the legislators of Delhi's Aam Aadmi Party (AAP) government staged a protest against the Pak JIT. They raised banners against the team in the Assembly. The JIT, which arrived in New Delhi, visited the NIA headquarters on Monday where they were briefed by the officials about the probe conducted so far.