RSA 12-G:51: Enforcement Powers.

The chief harbor master and the deputy chief harbor master shall have all of the powers of a police officer, including but not limited to the power to make arrests set forth in RSA 594, to enforce, investigate, and prosecute any:

I. Violation of the provisions of this chapter or rules adopted under this chapter relating to the division and division property, including but not limited to the provisions of RSA 12-G:42, X and XI; and

II. Offense under New Hampshire law occurring on division property where the arrest is made on division property or on vessels secured to or immediately adjacent to division property.