Related Rule
Practice Relating to Rule 146. Reprisals against Protected Persons
Section A. Captured combatants and prisoners of war
Ireland’s Basic LOAC Guide (2005) states: “Reprisals against PWs [prisoners of war] are prohibited. That is, PWs may not be punished for the acts of other people as a means of bringing pressure on the enemy to desist from such acts.” 
Ireland, Basic Guide to the Law of Armed Conflict, TP/TRG/01-2005, Director of Defence Forces Training, Department of Defence, July 2005, p. 8.