An investigation of a suspicious camper where drug activity was suspected resulted in the arrest of 37 year-old Jeff Sanders on charges of tampering with evidence, disorderly conduct, possession of drug paraphernalia, possession of a Schedule IV controlled substance (Xanax) and possession of a schedule II controlled substance (Morphine) last week. According to Detective Brandon Donnell, city police were called to investigate possible drug trade at a camper on West Main near Lincoln Street."As we pulled up to the camper, Jeff Sanders walked up,” Donnell said. “We told him that we were there on an investigation.