Norma relacionada
Practice Relating to Rule 147. Reprisals against Protected Objects
Section D. Objects indispensable to the survival of the civilian population
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.