Tennessee Code Title 8. Public Officers and Employees § 8-8-218

(a) Upon completion of honorable service by a full-time sheriff or deputy sheriff, the sheriff or deputy sheriff, upon retirement, may retain the sheriff’s or deputy sheriff’s service weapon in recognition of many years of good and faithful service. A sheriff or deputy sheriff who retires on disability retirement may also retain the service weapon.

(b) Subsection (a) shall have no effect unless it is approved by a two-thirds (2/3) vote of the legislative body of any county to which it may apply.