Related Rule
Practice Relating to Rule 128. Release and Return of Persons Deprived of Their Liberty
Uruguay’s Law on Cooperation with the ICC (2006) states:
26.2. Persons and objects affected by the war crimes set out in the present provision are persons and objects which international law protects in international or internal armed conflict.
26.3. The following are war crimes:
35. Unjustifiable delay in the repatriation or liberation of prisoners of war or detained enemy combatants or of the interned civilian population after the termination of hostilities. 
Uruguay, Law on Cooperation with the ICC, 2006, Articles 26.2 and 26.3.35.