Tenn. Code Ann. § 47-18-1706

Whenever the attorney general has reason to believe that a person is engaging in, has engaged in, or may be about to engage in a violation of this part or has reason to believe it to be in the public interest to conduct an investigation to ascertain whether any person is engaging in, or has engaged in, or is about to engage in such act or practice, the attorney general may conduct an investigation in accordance with § 47-18-106.