RSA 106-I:2 Emergency Declared by Governor; Authority of Officers.

I. For the duration of any state of emergency declared by the governor because of a natural disaster, riot, or act of terrorism, notwithstanding any law to the contrary:
(a) The governor, the commissioner of safety, or the commissioner's designee, may request assistance from a duly trained and certified state, county, or local law enforcement officer from New Hampshire or from any other state, county, or local law enforcement agency;
(b) A uniformed law enforcement officer who responds to the request for assistance shall have the authority to make arrests and shall have full police powers, under the supervision, direction, and control of New Hampshire state, county, or local law enforcement officers; and
(c) The authority of a law enforcement officer who responds t