At about 9:45 p.m. ET on Tuesday, officers stopped a vehicle in the 7800 block of Tall Pines Court in Glen Burnie for a traffic violation.
During the stop, the detectives noticed a small amount of suspected marijuana and prescription medication.
The occupants of the vehicle were removed and a search was conducted.
The driver, identified as 18-year-old Dezmon Wade Parker of Glen Burnie, and passengers Jacobs and Coleman were placed under arrest.
Parker was charged with related drug possession. Jacobs and Coleman were charged with handgun violations.