N.H. Rev. Stat. Ann. § 458-A:36
I. In a case arising under this chapter or involving the Hague Convention on the Civil Aspects of International Child Abduction, the prosecutor or other appropriate public official may take any lawful action, including resort to a proceeding under this subdivision or any other available civil proceeding to locate a child, obtain the return of a child, or enforce a child-custody determination if there is:
Source. 2009, 191:1, eff. Dec. 1, 2010.