In a major breakthrough amidst the ongoing drive to make Punjab a safe and secure state as per the directions of Chief Minister Bhagwant Singh Mann, Amritsar Commissionerate Police has busted three separate drug trafficking and illegal arms smuggling network with the arrest of eight individuals and recovered 11 pistol and 2.293 kg heroin from their possession, said Director General of Police (DGP) Punjab Gaurav Yadav here on Friday.