On Tuesday, June 15, the Navajo County Criminal Interdiction Unit conducted a traffic stop on Interstate 40 near Milepost 255 in Winslow and saw indicators of criminal activity. When a search of the vehicle was denied, K-9 Zolton was deployed to perform a free air sniff of the vehicle. Zolton alerted on the vehicle and a search of the vehicle revealed 69.24 pounds of methamphetamine and 2.9 grams of an unknown white powdery substance suspected to be a dangerous drug. Laura Rodriguez-Martinez, 40, of Los Angeles, Calif., and Ricardo Farfan-Garcia, 48, of California, were both arrested for transportation of dangerous drugs for sale, possession of dangerous drugs for sale, possession of dangerous drugs and possession of a narcotic drug. Both Rodriguez-Martinez and Farfan-Garcia were booked into the Navajo County Jail and are being held on a $75,000 cash only bond.