Tennessee Code Title 5. Counties § 5-7-108

(a)(1) The sheriff has charge of the courthouse, unless some other person is specially appointed by the county legislative body for that purpose, and shall prevent trespasses, exclude intruders, and keep it and the grounds attached thereto in order, reporting from time to time the repairs required, and the expense, to the county legislative body.

(2) Beginning July 1, 2008, deputy sheriffs newly assigned to courts pursuant to §§ 8-8-201(a)(2)(A), 16-15-715, and 37-1-213 shall participate in forty (40) hours of basic training in courthouse security within twelve (12) months of assignment to that duty. Every year thereafter the deputies shall participate in a minimum of sixteen (16) hours of training specific to courthouse security that has been approved by the peace officers standards and training commission.