N.H. Rev. Stat. § 659:42
Whoever shall take away, tamper with, injure, attempt to injure, destroy, or attempt to destroy any electronic ballot counting device for the counting of ballots to be used or being used in an election or whoever shall prevent or attempt to prevent the correct operation of such device or whoever shall tamper with software used in the counting of ballots or design such software so as to cause incorrect tabulation of the ballots or any unauthorized person who shall make or have in his or her possession a key to an electronic ballot counting device to be used or being used in an election shall be guilty of a class B felony if a natural person or guilty of a felony if any other person.
RSA 659:42
1979, 436:1. 2006, 305 : 5 . 2009, 70 : 6 , eff. Aug. 8, 2009.