Brian Timothy DemkoMohave County Sheriff’s deputies arrested Brian Timothy Demko, 23, of Golden Valley, early Thursday (10/29) morning for possession of narcotic drugs, possession of drug paraphernalia, felonies, and a misdemeanor warrant for failure to pay fines issued by Kingman Justice Court.  Approximately 1:45 a.m., deputies conducted a traffic stop in the 2100 block of Northern Avenue and contacted Demko, the driver.  Demko was taken into custody after a records check showed him to have an active warrant.  An inventory search of the vehicle revealed a plastic bag containing a black sticky substance which field tested positive for heroin.  He was transported and booked into the Mohave County Jail without incident.  The vehicle was towed from the scene.