The board may enforce any provisions of this chapter by injunction or by any other appropriate proceeding. No such proceeding shall be barred by any proceeding had or pending pursuant to any other section of this chapter, and the authority conferred in this chapter is in addition to and supplementary to any other statute, civil or criminal, dealing with the subject matters herein and the institution and prosecution of any action shall not preclude the institution and prosecution under other appropriate civil or criminal statutes dealing therewith.