Searches by the National Investigation Agency (NIA) are underway at several locations in Bihar's Muzaffarpur district in connection with its probe into the procurement of AK-47 rifle butt and scope, a senior officer said. Muzaffarpur Deputy SP A C Gyani said sleuths of the federal agency started conducting the raids at 5 AM. "Sleuths of the federal investigation agency are searching the premises of one Devamni Rai in Kudhni area in connection with its probe into the recovery of one butt and one scope of an illegally procured AK-47 rifle from his possession." There are reports that NIA sleuths have also recovered unaccounted cash from his premises, and a note-counting machine has been brought, the deputy SP. Notably, the Bihar Police had busted a network of arms smugglers in May this year and arrested two persons Vikash Kumar and Satyam Kumar from Muzaffarpur railway station in connection with the recovery of the AK-47 rifle parts. A preliminary investigation revealed that Vikash h