Related Rule
Djibouti
Practice Relating to Rule 65. Perfidy
Djibouti’s Manual on International Humanitarian Law (2004) states:
Abuse of the emblem
Any usage which is not expressly authorized by IHL constitutes an abuse of the emblem. One distinguishes between three kinds of abuse [one of which is]:
- perfidy, which consists of utilizing the emblem in times of conflict in order to protect combatants or military material; perfidious use of the emblem constitutes a “grave breach” of IHL, that is to say, a war crime. 
Djibouti, Manuel sur le droit international humanitaire et les droits de l’homme applicables au travail du policier, Ministère de l’Intérieur, Direction Générale de la Police, 2004, p. 16.
The manual also states that the following “are currently considered as war crimes … if committed against any person not or no longer participating in hostilities: … perfidiously utilizing the protective emblem of the red cross or red crescent”. 
Djibouti, Manuel sur le droit international humanitaire et les droits de l’homme applicables au travail du policier, Ministère de l’Intérieur, Direction Générale de la Police, 2004, pp. 50–51.