N.H. Rev. Stat. Ann. § 562-A:9

Nothing in this chapter shall be construed to limit the ability of the state of New Hampshire to take any action or utilize any process to enforce the criminal laws of this state. A final decision on the merits rendered by a court in a civil proceeding brought by a private person, an estate, or an administrator pursuant to RSA 562-A:5, II or III shall not be construed to have any preclusive effect on any criminal prosecution.