Related Rule
New Zealand
Practice Relating to Rule 2. Violence Aimed at Spreading Terror among the Civilian Population
New Zealand’s Military Manual (1992) prohibits “acts or threats of violence the primary purpose of which is to spread terror among the civilian population”. 
New Zealand, Interim Law of Armed Conflict Manual, DM 112, New Zealand Defence Force, Headquarters, Directorate of Legal Services, Wellington, November 1992, § 517(1).
The manual repeats this prohibition with respect to non-international armed conflicts in particular. 
New Zealand, Interim Law of Armed Conflict Manual, DM 112, New Zealand Defence Force, Headquarters, Directorate of Legal Services, Wellington, November 1992, § 1819.