"It is clarified that the prosecution is at liberty to investigate the case and may file separate chargesheet against such police officers," Additional Sessions Judge Vinod Kumar said, while disposing of an application seeking to impeach some police officers as accused.

Public Prosecutor Vinod Kumar had filed an application stating that there was sufficient evidence against the police officers for summoning them to be tried for the offence of murder and attempt to murder.

The court, which refused to allow the plea, however, gave police the freedom to probe their alleged complicity in the anti-Sikh riots in the Capital following the assassination of Prime Minister Indira Gandhi.