N.H. Rev. Stat. § 640:1
Nothing in this chapter shall be construed to prohibit the giving or receiving of campaign contributions made for the purpose of defraying the costs of a political campaign, or the giving or receiving of any other thing exempt from the prohibition on gifts pursuant to RSA 15-B. No person shall be convicted of an offense solely on the evidence that a campaign contribution, or any other thing exempt from the prohibition on gifts pursuant to RSA 15-B was made to a public official, and that a vote, an appointment, or a nomination was subsequently made by the person to whose campaign or political party the contribution was made or who received the thing exempt from the prohibition on gifts pursuant to RSA 15-B.
RSA 640:1
1971, 518:1. 2007, 354 : 1 , eff. Sept. 15, 2007.