Practice Relating to Rule 30. Persons and Objects Displaying the Distinctive Emblem
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:
32. Intentionally directing attacks against … personnel using the distinctive emblems of the  Geneva Conventions and their Additional Protocols in conformity with international law.