Every death or serious injury of a prisoner of war caused or suspected to have been caused by a sentry, another prisoner of war, or any other person, as well as any death the cause of which is unknown, shall be immediately followed by an official enquiry by the Detaining Power.
A communication on this subject shall be sent immediately to the Protecting Power. Statements shall be taken from witnesses, especially from those who are prisoners of war, and a report including such statements shall be forwarded to the Protecting Power.
If the enquiry indicates the guilt of one or more persons, the Detaining Power shall take all measures for the prosecution of the person or persons responsible.