An Arkansas couple was arrested shortly after 2 Monday morning after a routine traffic stop by a Hopkins County deputy at the 135 mile marker of I-30. The deputy smelled burning marijuana and initiated a search. 33 year old Linnea Colynn Brown of Hot Springs was found to have amphetamine and dextroamphetamine pills inside her purse. The driver, 25 year old Slade Alan Yarbrough of Bismarck admitted to throwing a pouch containing drug paraphernalia under the patrol car. Brown was charged with possession of a controlled substance and Yarbrough was charged with tampering with evidence.