If you believe a case being investigated by Kolkata or West Bengal state police is not being handled fairly or competently, and you want it transferred to the CBI, this is indeed possible, and the Calcutta High Court has the constitutional power to make such a direction, though courts exercise this power sparingly and only in appropriate circumstances. Under Article 226, the High Court can direct a CBI investigation where it is satisfied that this is necessary to do complete justice, typically in cases involving allegations against powerful individuals, evidence suggesting the state police investigation is compromised or biased, or where public confidence in a fair investigation genuinely requires an independent central agency to step in.

The Supreme Court has laid down that this power should be used only in exceptional circumstances, since routinely transferring investigations to the CBI would undermine the constitutional framework where law and order and investigation of ordinary crimes fall primarily within state jurisdiction. Petitioners seeking a CBI investigation before the Calcutta High Court need to demonstrate specific, credible reasons why the state police investigation cannot be trusted to proceed fairly, rather than general dissatisfaction with the pace or direction of the existing investigation.

Common grounds that have supported such directions include evidence of the investigating officers being influenced by powerful accused persons, glaring inconsistencies or gaps in the state investigation suggesting deliberate suppression of evidence, or cases with significant public interest and complexity where the state police may lack the specialised resources the CBI can bring. West Bengal has seen several high-profile instances where the Calcutta High Court has directed CBI investigation into politically sensitive or high-stakes matters.

Because petitions seeking CBI transfer require substantial and credible evidence of inadequacy or bias in the existing investigation, this needs careful preparation with strong supporting material rather than general allegations. Aapka Legal Advice can help assess whether your case presents grounds strong enough to justify seeking CBI intervention.

If you believe a state police investigation in Kolkata is not being conducted fairly, this is a serious step worth exploring with the right evidence behind it. Consult experienced criminal lawyers in Kolkata about whether seeking a CBI investigation is appropriate for your case.