相关规则
Serbia
Practice Relating to Rule 65. Perfidy
Serbia’s Criminal Code (2005) states:
(1) Whoever in violation of international law in time of war or armed conflict kills or wounds an enemy who has laid down his weapons or has surrendered unconditionally or has no means of defence, shall be punished by imprisonment of one to fifteen years.
(2) If the murder specified in paragraph 1 of this Article is committed in a perfidious manner or from base motives, the offender shall be punished by imprisonment for a minimum of ten years. 
Serbia, Criminal Code, 2005, Article 385.