A GROUP of 15 suspected drug users and traffickers were arrested in Kampong Cham on Saturday during a Khmer New Year crackdown, a police official said. Nuon Samin, Kampong Cham provincial police chief, said Sunday that 11 suspected crystal methamphetamine users and their four alleged dealers were apprehended during three separate raids in Kampong Cham town, Soung town and Tbong Khmum district.