Haw. Rev. Stat. § 603-23: Injunction of violation of laws and ordinances.

The circuit courts shall have power to enjoin or prohibit any violation of the laws of the State, or of the ordinances of the various counties, upon application of the attorney general, the director of commerce and consumer affairs, or the various county attorneys, corporation counsels, or prosecuting attorneys, even if a criminal penalty is provided for violation of the laws or ordinances. Nothing herein limits the powers elsewhere conferred on circuit courts.