What measures have been taken by your State to implement those existing principles of international humanitarian law that are considered by your State as relevant to the use of munitions, including submunitions, that may become ERW?
In answering this question, States may like to address, among other issues, the following specific questions: …
(v) Does your State have a mechanism to review the legality of new weapons, methods of warfare and military doctrine? (If yes, what is the legal basis for those systems?)
14. Although Japan does not have a specific mechanism solely for the review described in the question, it considers it obvious that Japan should implement the obligation in Article 36 of the Protocol I and review the legality of new weapons.
Responses to Document CCW/GGE/X/WG.1/WP.2, Entitled IHL and ERW, Dated 8 March 2005: Response from Japan (4 August 2005) CCW/GGE/XI/WG.1/WP.12