Troopers will be looking for drunk drivers this Friday night as sobriety checkpoints will be held across Warren County.“Impaired driving is a serious crime that kills more than 16,000 people and injures over 305,000 others every year in the United States,” said Tennessee Highway Patrol Capt. Robert Christian, revealing troopers will be looking for those who drink and get behind the wheel. “Troopers will evaluate drivers for signs of alcohol or drug impairment.”Local State Trooper leader Sgt. Jimmy Jones said the checkpoints will be held Friday night. The approximate time for their start will be around 9 p.m. The checkpoints are often floating in nature, meaning they could be held at various locations across the county.