Tenn. Code § 5-23-101
It is the legislative intent that all counties in this state have certain minimum written personnel policies in effect in order to assist in maintaining compliance with applicable state and federal laws and to facilitate accurate recordkeeping. This chapter is not intended to affect the present authority within counties to adopt policies in addition to those required by this chapter, nor is it intended to enlarge, diminish or otherwise affect the obligation to comply with current state and federal laws governing personnel matters. Nothing in this chapter shall be construed to impose any liability on any county government for failure to have written personnel policies in place, except as may be otherwise specifically provided by law.
T.C.A. § 5-23-101