It shall be the duty of the attorney general, and the county attorneys of this state to institute an inquiry to unfair discrimination, giving to the party complained against notice and reasonable opportunity to be heard, and if in the judgment of such prosecuting officers, or either of them, any corporation, foreign or domestic, or any person or firm of persons shall have been guilty of unfair discrimination, within the terms of this act, it shall be their duty to institute quo warranto proceeding, to forfeit the charter of said domestic corporation, or if a foreign corporation to procure an order of court to cause the permit of said corporation
to do business in this state, immediately forfeited.