On August 20, 2010 at approximately 9:08 p.m., a traffic stop was performed on Highway 75 mile marker 115 north bound, on a black 2001 Pontiac Bonneville bearing South Dakota license plate C6684.  The driver of the vehicle was identified as Phaylat Khamvanh, age 27.  During the stop, law enforcement performed a search of the vehicle.  During the search, a pipe filled with an illegal controlled substance was found in the vehicle.  Khamvanh was subsequently placed under arrest for possession of a controlled substance and possession of drug paraphernalia.  She was then transported to the Plymouth County Jail.