Tennessee Code Title 49. Education § 49-6-4209

(a) It is the duty of a school principal who has reasonable suspicion to believe, either as a result of a search or otherwise, that any student is committing or has committed any violation of title 39, chapter 17, part 4, § 39-17-1307, or § 39-17-1309 upon the school grounds or within any school building or structure under the principal's supervision, to report the reasonable suspicion to the appropriate law enforcement officer.

(b) School personnel have the duty to report any reasonable suspicion that a student is committing or has committed any violation of title 39, chapter 17, part 4 or § 39-17-1307 to the principal, or, if the principal is not available, to the principal's designee. If neither the principal nor the designee is available, school personnel may report violations of title 39, chapter 17, part 4 or § 39-17-1307 committed on school property to the appropriate authorities.