Tenn. Code Ann. § 65-20-105

Any person who publicly drinks any intoxicating liquor, including wine, ale or beer, or is intoxicated on any railway passenger train, street car, omnibus or other public vehicle of passenger transportation in violation of § 39-17-310 thereby forfeits all rights as a passenger, and it is the duty of the conductor or person in charge of the vehicle of transportation to eject such passenger forthwith.