The decision of the Union government to transfer the investigation into the Bhima Koregaon cases to the National Investigation Agency (NIA) — without consulting the Maharashtra state government led by Shiv Sena — and the resultant grave threat it poses to the concept and spirit of federalism is a matter of grave concern. The fact that the decision to hand over the probe to NIA came a day after the Maharashtra government reviewed the charge sheet filed in the cases had raised more questions than they answer. Investigation by the Pune police saw several human rights activists and lawyers who,