Tenn. Code Ann. § 8-8-103

The sheriff, before entering on the duties of that office, shall enter into an official bond prepared in accordance with chapter 19 of this title, in a penalty of not less than one hundred thousand dollars ($100,000), or in a greater sum as the county legislative body may determine, payable to the state, and conditioned well and truly to execute and make due return of all process directed to the sheriff, and to pay all fees and sums of money received by the sheriff, or levied by virtue of any process, into the proper office or to the person entitled, and faithfully to execute the office of sheriff and perform its duties and functions during such person's continuance therein. This bond shall be acknowledged before the county legislative body, in open session, approved by it, recorded upon the minutes, and recorded in the office of the county register of deeds and transmitted to the office of the county clerk for safekeeping.