This is an excerpt of Articles 4 and 5 of the 1949 Geneva Convention.
Geneva Convention Article 4: Convention (III) Relative to the Treatment of Prisoners of War: Part I General Provisions
Geneva Convention Article 4: Convention (IV) relative to the Protection of Civilian Persons in Time of War Part I: General Provisions.
Geneva Convention Article V: Convention (V) Information Bureaux and Relief Societies for Prisoners of War