Two people were arrested in Poplar Bluff after a traffic stop on Friday. Officer Billie Duckett says he conducted a traffic stop on a white Ford f-150 due to the vehicle having no tail lights. Both the driver, Scott Markham, and passenger Tammy Hall got out of the vehicle. Officers noticed a bag of white crystal substance on the ground. Markham was placed under arrest for outstanding warrants through Carter County and the Poplar Bluff Municipal Court. Hall was arrested for possession of a controlled substance. The white crystal substance tested positive for methamphetamine and weighed 7.2 grams. Both Markham and Hall were taken to the Butler County Justice Center.