N.H. R. Evid. 510
A person claiming a privilege against disclosure waives the privilege if the person or the person's predecessor, while holder of the privilege, knowingly and voluntarily discloses or consents to disclosure of any significant part of the privileged matter. This Rule does not apply if the disclosure itself is privileged.
N.H. R. Evid. 510
2016 NHRE Update Committee Note
No change was made to New Hampshire Rule of Evidence 510 by supreme court order dated April 20, 2017, effective July 1, 2017. None of the privilege rules were adopted from the Federal Rules of Evidence so they were not part of the Update Committee's targeted review. Some of the rules of privilege are adopted from the Uniform Rules of Evidence and some of them summarize New Hampshire statutes on privilege that were in existence at the time the New Hampshire Rules of Evidence were adopted. The Uniform Rules of Evidence were modified in 2005. The Update Committee did not make recommendations to amend these rules based upon Uniform Rule modifications.