It shall be the duty of the solicitors of each judicial circuit and all county and city attorneys to lend to the Attorney General such assistance as the Attorney General may request in the commencement and prosecution of actions pursuant to this article, or any solicitor or county or city attorney with prior approval of the Attorney General may institute and prosecute actions hereunder in the same manner as provided for the Attorney General; provided, however, that if an action is prosecuted by a solicitor or county or city attorney alone, he shall make a full report thereon to the Attorney General, including the final disposition of the matter.