NH. REV. STAT. § 631:2. SECOND DEGREE ASSAULT
I. A person is guilty of a Class B felony if he or she:
(f) Purposely or knowingly engages in the strangulation of another.
II. In this section:
(c) “Strangulation” means the application of pressure to another person’s throat or neck, or the blocking of the person’s nose or mouth, that causes the person to experience impeded breathing or blood circulation or a change in voice.