相关规则
Japan
Practice Relating to Rule 59. Improper Use of the Distinctive Emblems of the Geneva Conventions
Japan’s Self-Defence Force Notification (1965) provides that the commander of a unit should prevent the use of the red cross emblem by persons not entitled to use it. 
Japan, Notification on the Treatment of an Emblem of the Red Cross and ID Cards for Medical Staff, Land Self-Defence Force Notification No. 92-11, 1 October 1965, Article 11.
Japan’s Emblem Law (1947) provides that the emblem of the red cross (and equivalent) should not be used without permission. 
Japan, Emblem Law, 1947, Article 1.
Anyone who violates this provision may be sentenced to imprisonment. 
Japan, Emblem Law, 1947, Article 4.
Japan’s Civil Protection Law (2004) states:
(Issuance etc. of Red Cross Emblems etc.)
Article 157
1. No person may abuse, in armed attack situations etc., distinctive signals (distinctive signal under Article 8 (m) of the [1977] Additional Protocol I … or identity cards (identity card under Article 18 Paragraph 3 of the Additional Protocol I).
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 distinctive signals or identity cards in violation of Article 157 Paragraph 1. 
Japan, Civil Protection Law, 2004, Articles 157(1) and 189(2).