N.H. Rev. Stat. § 106-B:19
The director is authorized to recruit, train, and organize an auxiliary state police force for the purpose of providing emergency services throughout the state for peacetime or wartime emergencies or threatened emergencies and for augmenting the state police force in such manner as the director may deem appropriate. Notwithstanding other provisions the director may recruit such auxiliary force from retired state or local police. Such auxiliary force shall at all times be under the direction and control of the said director and shall be subject to rules adopted by the director under RSA 541-A and shall be limited to specific hours in any given calendar year for part-time police officers adopted in rules under RSA 541-A by the police standards and training council, pursuant to RSA 106-L:6, III.
RSA 106-B:19
1965, 374:1. 1987, 124:11, eff. July 1, 1987. 2013, 132 : 1 , eff. June 25, 2013. 2017, 206 : 9 , eff. Sept. 8, 2017.