RIYADH — Traffic police here have detained an expatriate who allegedly ran over a traffic policeman who tried to stop him. Riyadh Traffic Police spokesman, Lt. Col. Hasan Al-Hasan, said a driver tried to avoid an inspection the officer was conducting and hit him and fled. Al-Hasan said other police patrols pursued the fleeing car, detained its Arab national driver, and found a quantity of hashish inside the vehicle. The driver was referred to investigation authorities, while the policeman is receiving treatment at Al-Shumaisy Hospital and is in a stable condition.