Requisites: 1. Crime is committed on board a private or merchant ship; 2. The ship or airship must be registered under Philippine Law; and 3. The crime must be committed while the registered Philippine ship is on international wateres. The Revised Penal Code applies when such Philippine vessel is found within: 1. Philippine waters; or 2. The high seas. Foreign Merchant Vessels 1. The French Rule General Rule: Crimes committed aboard a vessel within the territorial waters of another country are not triable in the courts of that country. Exception: If the commission affects the peace and security of the territory or when the safety of the state is endangered. 2. English Rule General Rule: Crimes committed aboard a vessel within the territor...