A report of possible drug sales resulted in the arrest of a Twentynine Palms man Wednesday. According to a Sheriff’s report, deputies were dispatched to a parking lot near Tamarisk Avenue and Highway 62 in Twentynine Palms about 4 p.m. Wednesday for possible drug sales. Deputies contacted Ehrrich Grenzow, 26, and discovered he was on probation for child endangerment from 2011. During a search of Grenzow, the deputy discovered baggies of a white substance that tested positive for amphetamines. Ehrrich Grenzow was arrested for investigation of possession of dangerous drugs, booked at the Morongo Basin Jail, cited and released.