Related Rule
Philippines
Practice Relating to Rule 157. Jurisdiction over War Crimes
In its judgment in the Kuroda case in 1949, the Supreme Court of the Philippines held that the government had the power to grant the jurisdiction to prosecute Japanese citizens accused of war crimes committed in the Philippines during the Second World War, since “the rules and regulations of the Hague and [the 1949] Geneva Conventions form part and were wholly based on the principles of international law”. 
Philippines, Supreme Court, Kuroda case, Judgment, 26 March 1949.