Related Rule
New Zealand
Practice Relating to Rule 146. Reprisals against Protected Persons
Section B. Wounded, sick and shipwrecked in the power of the adversary
New Zealand’s Military Manual (1992), in the chapter dealing with the wounded, sick and shipwrecked and referring to Article 46 of the 1949 Geneva Convention I, Article 47 of the 1949 Geneva Convention II and Article 20 of the 1977 Additional Protocol I, states: “Reprisals against the wounded, sick [and] shipwrecked … are forbidden.” 
New Zealand, Interim Law of Armed Conflict Manual, DM 112, New Zealand Defence Force, Headquarters, Directorate of Legal Services, Wellington, November 1992, § 1002(7).
In a chapter dealing with reprisals, the manual states:
Reprisals against the following categories of persons and objects are prohibited: a) the wounded, sick … protected by [Article 46 of the 1949 Geneva Convention I]; b) the wounded, sick and shipwrecked persons … protected by [Article 47 of the 1949 Geneva Convention II]. 
New Zealand, Interim Law of Armed Conflict Manual, DM 112, New Zealand Defence Force, Headquarters, Directorate of Legal Services, Wellington, November 1992, § 1606(2).