Tenn. Code Ann. § 4-7-105

The members of the Tennessee highway patrol have jurisdiction and authority to make such investigation of operators of motor vehicles for hire as they may see fit to ascertain whether or not they are operating in compliance with § 65-15-109, and whether or not they are otherwise complying with the law relating to such operators, and they have authority to make arrests for any violation of title 65, chapter 15, or of any other traffic law of the state.