A Great Bend man was arrested Saturday night in a motel parking lot on drug charges, according a news release from the Great Bend Police Department.At about midnight Saturday, an officer from the GBPD was on routine patrol in the area of the Traveler’s Budget Inn, 4200 10th St. The officer observed a male subject, later identified as Zachary Thompson, 26, loitering in the parking lot, acting suspicious. As the officer was contacting Thompson, another officer arrived on scene to assist.