At a Glance: New Hampshire does not restrict the possession of knives by law-abiding individuals. Relevant Statutes: 625:11 General Definitions. 159:3 Convicted Felons. 159:19 Courthouse Security. 159:26 Firearms, Ammunition, and Knives; Authority of the State. 642:7 Implements for Escape and Other Contraband.  Restricted Knives: There are no restricted knives except for persons previously convicted of a … Continue reading New Hampshire Knife Laws