Related Rule
Practice Relating to Rule 146. Reprisals against Protected Persons
Section D. Civilians in the power of the adversary
According to the Report on the Practice of Jordan: “The prohibition of belligerent reprisals against protected persons and property is viewed as customary law … In practice, Jordan never resorted to attacks by way of reprisal.” 
Report on the Practice of Jordan, 1997, Chapter 2.9.