Henry Klementowicz


Deputy Legal Director

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At the ACLU of New Hampshire, Henry’s work focuses on litigation and statehouse advocacy in support of civil rights and civil liberties, particularly in the areas of voting rights, governmental records, due process, and freedom of speech. Representative cases include Casey v. Gardner, 173 N.H. 266 (2020) (challenge to voting law HB 1264); ACLU of NH v. Concord, 174 N.H. 653 (2021) (challenge to City of Concord’s refusal to disclose covert communications equipment); Provenza v. Canaan, 175 N.H. 121 (2022) (right to know case at supreme court seeking access to investigation of alleged misconduct); Petition of State, 174 N.H. 785 (2022) (regarding whether trial court erred in denying protective order governing Brady disclosure of exculpatory evidence in police officers’ personnel file); Norelli v. Secretary of State, 175 N.H. 186 (2022) (as amicus, challenge to State’s failure to redistrict congressional plan); Paine v. Ride-Away, Inc., 174 N.H. 757 (2022) (as amicus, challenge to denial of work accommodation for user of therapeutic cannabis); Brown v. Secretary of State, ​___ N.H. ​____ (2023)  (as amicus, challenge to partisan gerrymander of state senate and executive council).

Henry joined the ACLU of New Hampshire after almost three years of working for a large New Hampshire law firm. He is especially proud of his work to create a partnership between that firm and the New England Innocence Project, which seeks exoneration of wrongfully convicted individuals in New Hampshire.  Prior to that, he clerked for the judges of Rockingham Superior Court. He has represented clients in the New Hampshire Supreme Court, superior courts, all divisions of the circuit court, and the United States District Court for the District of New Hampshire.

Henry received his J.D. from Georgetown University Law Center, where he was a Notes Development Editor for the American Criminal Law Review, and his B.S. from Columbia University. Henry is a New Hampshire native, and lives in Portsmouth with his wife and son. In his spare time, Henry enjoys craft beer, science fiction, and playing with his cats.