N.H. Rev. Stat. § 601:6
In indictments charging any degree of murder, including capital murder, it is not necessary to set forth the manner in which or the means by which the death of the deceased was caused, but it is sufficient in an indictment for murder to charge the culpable mental state applicable and, where appropriate, the particular circumstances set forth in RSA 630:1, I, RSA 630:1-a, I, or RSA 630:1-b, I, constituting an element of the offense charged, and in an indictment for manslaughter to charge the culpable mental state applicable and, where appropriate, the particular circumstances set forth in RSA 630:2 constituting an element of the offense charged.
RSA 601:6
GS 242:14. GL 260:14. PS 253:11. PL 367 :10. RL 427:10. RSA 601:6. 1977, 315:1, eff. Aug. 26, 1977.