Justice Joymalyo Bagchi directed CBI to investigate the murder of Arpan Mukherjee and submit a status report after three months.
Mukherjee, son of former CPI(M) MLA from Hirapur Bamapada Mukherjee, was shot dead in broad daylight on May 10, 2012 at Asansol town when he was out for morning walk.
An FIR was lodged with Hirapur police station, but since there was little progress in the investigation, Mukherjee's son Arkadeb moved the high court seeking a CID probe.
But since the state investigating agency also could make little progress in the probe, Arkadeb moved the high court again seeking a CBI investigation.
Noting the lack of progress in the investigation by the state police agencies, Justice Bagchi ordered a CBI investigation.