Tennessee Code Title 8. Public Officers and Employees § 8-8-415

(a) Whenever a vacancy occurs in any position in the classified section of the office of sheriff, the sheriff shall ask the board for the names and addresses of all eligible persons. The board shall certify the names of all persons on the eligible list for that position within thirty (30) days of the sheriff's request. The sheriff shall investigate each of the five (5) highest on the list of eligibles. If none of the five (5) eligibles are acceptable to the sheriff, the sheriff shall investigate the next five (5) eligibles on the list, one (1) after another until one (1) of the eligibles investigated is acceptable. The sheriff shall appoint this person to the position and notify the board of such action. If the civil service board fails to provide a list, then the sheriff may make appointments to vacancies after having notified the board of an intention to do so.

(b) No appointment or promotion for any position in the classified service shall be deemed complete until after the expiration of six (6) months' probationary service, during which time the sheriff may determine the effectiveness of the employee and if, in the sheriff's judgment, the employee does not meet the standards the sheriff may terminate the employment of that person.

(c) Whenever a position of the classified service is filled by promotion, and the services of the person promoted are terminated by the sheriff during the probationary period, such person shall be returned to such person's former position in the classified service unless such person's conduct during the probationary period has given grounds for dismissal for cause under this part.

(d) Any person dismissed during the probationary period shall not be eligible for a hearing before the board.

(e) A person certified to the sheriff who does not report for duty at the time so designated and who does not explain in writing within five (5) days such failure to report, may be rejected by the sheriff, who shall notify the board of the action taken and the reason for it. The person's name will then be stricken from the eligible list.