If any county commission fails to levy a tax to erect or repair a county jail when necessary, the persons composing such county commission are severally guilty of a misdemeanor and must, on conviction, be fined not less than $50.00, but any member thereof may exonerate himself from such fine by proving that he was in favor of levying a tax sufficient for the erection or repair of the county jail, but was overruled by his colleagues.
Ala. Code § 11-14-15 (1975)