RSA 458:31: Orders for Support of Spouse.

If either spouse is living apart from the other without justifiable cause or willingly absents himself or herself from the other, the superior court, upon his or her petition, or if insane by his or her guardian or next friend, may issue orders which may at the discretion of the court be ex parte and which may grant such relief as provided for in RSA 458:16. The domicile requirements of RSA 458:4, 5, and 6 shall not apply to this section; and the court may grant relief hereunder to a nonresident plaintiff if the defendant is a resident of this state.