Ala. Code § 25-2-24

It shall be the duty of the qualified attorneys regularly employed by the Department of Labor, or the Attorney General of the state and any district attorney, upon the request of the Secretary of Labor or of any of his authorized representatives, to prosecute any violation of any law, the administration or enforcement of which has been made a duty or function of the Department of Labor, or any rule or regulation adopted pursuant thereto. A district attorney’s fee of $5.00 shall be taxed as costs against any defendant convicted.