It shall be the duty of each district attorney, county attorney or city attorney to whom the State Board of Health reports any violation of this article to cause appropriate proceedings to be instituted in the proper courts without delay and to be prosecuted in the manner required by law. Before any violation of this article is reported to any such attorney for the institution of a criminal proceeding, the person against whom such proceeding is contemplated shall be given appropriate notice and an opportunity to present his views before the board, either orally or in writing, in person or by attorney with regard to such contemplated proceeding.