Notwithstanding the provisions of Section 24-5-10 or any other provision of law, the sheriff of any county may, upon approval of the governing body of the county, devolve all of his powers and duties relating to the custody of the county jail and the appointment of a jailer on the governing body of the county; provided, a sheriff who has been defeated in a primary or general election may not devolve said duties on the governing body of the county.