Related Rule
Practice Relating to Rule 61. Improper Use of Other Internationally Recognized Emblems
Japan’s Civil Protection Law (2004) states:
Article 158
1. No person may abuse, in armed attack situations etc., distinctive signs (international distinctive signs under Article 66 Paragraph 3 of [1977] Additional Protocol I, … or identity cards …
Article 189
A person who falls under either of the following shall be subject to imprisonment of not more than six months or a fine of not more than 300,000 yen:
(2) A person who abuses … the distinctive signals or identity cards in violation of Article 158 Paragraph 1. 
Japan, Civil Protection Law, 2004, Articles 158(1) and 189(2).