N.H. Rev. Stat. Ann. § 193-F:7

A school administrative unit employee, school employee, chartered public school employee, regular school volunteer, pupil, parent, legal guardian, or employee of a company under contract to a school, school district, school administrative unit, or chartered public school, shall be immune from civil liability for good faith conduct arising from or pertaining to the reporting, investigation, findings, recommended response, or implementation of a recommended response under this chapter. The department of education shall be immune from civil liability for its good faith conduct in making recommendations under this chapter.