A Utah man has been accused of stealing a San Juan County sheriff's department vehicle and of using the vehicle to make traffic stops near the Arizona and Utah border.

Navajo police arrested Wilford Grant, 28, of Montezuma Creek, Utah, one mile south of the Red Mesa Trading Post on Saturday on the Navajo Reservation.Grant was accused of impersonating a police officer, possession of liquor, public intoxication and criminal nuisance, police spokeswoman Carolyn Calvin said Thursday.