RSA 49-B:10 Judicial Review.

I. The superior court may, upon petition of 10 voters of the municipality or on petition of the attorney general, enforce this chapter.
II. A petition for declaratory relief may be brought on behalf of the public by the attorney general or, by leave of the court, by 10 voters of the municipality. In the case of petition of 10 voters, the attorney general shall be served with notice of the preliminary petition for leave, and may intervene as a party at any stage of the proceedings; and the petitioners shall be liable for, but may in the court's discretion also be awarded costs, which may include reasonable attorney's fees.
III. Judicial review to determine the validity of the procedures whereby any charter is adopted, revised or amended may be had by petition of 10 voters