The attorney general, or any county attorney of the state within his county or any city attorney within his city shall at all times have the power to enjoin any party from selling cereal malt beverages within the county or city notwithstanding said party has a license and permit if it shall appear that the licensee has violated any provision or regulation of this act or any of the rules or regulations prescribed under this act. Injunction proceedings shall be the same as is now prescribed for the enjoining of intoxicating liquor nuisances.