The Enforcement Directorate (ED) has approached the Calcutta High Court, seeking a CBI investigation into the role of West Bengal Chief Minister Mamata Banerjee, senior police officials and others for allegedly obstructing its raids in Kolkata against political consultancy firm I-PAC and its director. PTI has reviewed the writ petition of the federal probe agency, where it has also sought "immediate seizure, sealing, forensic preservation, and restoration to lawful custody of the ED" all digital devices, electronic records, storage media, and documents "illegally and forcibly" taken away from the search premises. The high court is expected to hear the petition on Friday. The search was mounted on Thursday at the Salt Lake office of I-PAC and its founder and one of the directors Pratik Gandhi as part of an alleged coal scam-linked money laundering case. Some other locations in the state and Delhi were also raided. The ED had alleged in a press statement on Thursday that Banerjee ...