(a) Unless provided otherwise by law, the attorney general shall seek a judicial forfeiture of a private corporation's charter if sufficient cause exists. If satisfactory evidence is presented to the attorney general that a corporation receiving state aid has forfeited its charter or rights under its charter, the attorney general shall immediately seek a judicial forfeiture of the charter.
(b) The attorney general shall inquire into the charter rights of each private corporation and act in the name of the state as proper and necessary to prevent the corporation from exercising a power or demanding or collecting a tax, toll, freight, or wharfage not authorized by law.