Twenty-two year-old Ranbir Singh's parents said on Saturday that there son had no criminal background and his killing was a clear case of mistaken identity.
Singh was shot dead on Friday in the Ladpur jungles.
The state's Principal Secretary (Home), Subhash Kumar, said that a magisterial inquiry has been ordered into the incident.
Senior Superintendent of Police (Dehradun) said Singh was riding a motor cycle along with two others and snatched the revolver of a constable when their two-wheeler was stopped during a checking of vehicles in view of president Pratibha Patil's visit.
His inconsolable parents maintained his innocence and demanded that his criminal record be shown to them.
The police just killed him to get (gallantry) medals. And the police are threatening me now," his father said.
Uttarakhand Inspector General of Police N A Ganapati said the three boys were asked to stop by G D Bhatt, a sub-inspector at Dalanwala area. When the police searched their bag, a weapon was found in it, he said, adding that the boys overpowered Bhatt, snatched his revolver and fled.
When the SI flashed a message over the wireless, the boys were intercepted at another place and there was an encounter in which Ranbir was killed, Ganapati said.(ANI)