N.H. Rev. Stat. § 310:13
Whoever, not being licensed or otherwise authorized to practice according to the laws of this state, advertises oneself as engaging in a profession licensed by the office of professional licensure and certification, engages in activity requiring professional licensure, or in any way holds oneself out as qualified to do so, or calls oneself a licensed professional, or whoever does such acts after receiving notice that such person's license to practice has been suspended or revoked, is engaged in unlawful practice. The office may, for purposes of verifying licensure, request to see the license of anyone who advertises oneself as engaging in a profession licensed by the office,engages in activity requiring professional licensure, or in any way holds oneself out as qualified to do so, or calls oneself a licensed professional, or whoever does such acts after receiving notice that such person's license to practice has been suspended or revoked, at the place of business, or where such business is being conducted, of such individual. After providing notice and opportunity to be heard in accordance with RSA 310:10, and upon making an affirmative finding of unlawful practice, the board may impose a fine not to exceed the amount of any gain or economic benefit that the person derived from the violation, or up to $10,000 for each offense, whichever amount is greater. Each violation of unlicensed or unlawful practice shall be deemed a separate offense. The board, the state's attorney general, or a prosecuting attorney of any county or municipality where the act of unlawful practice takes place may maintain an action to enjoin any person or entity from continuing to do acts of unlawful practice. The action to enjoin shall not replace any other civil, criminal, or regulatory remedy. An injunction without bond is available to any board.
RSA 310:13