The article analyzes the general agreement conducted by the Revolutionary Armed Forces of Colombia – FARC – and the Colombian Government in recent months, the legal framework for peace and some of the rules and sentences of public international law, especially those related to negotiations with armed groups, regarding the applicability of political crimes and the possibility of amnesties and pardons for acts committed during the internal armed conflict. The above, in order to decipher the tensions present between the legal framework for peace, the general agreement for ending the conflict and the international law of armed conflict from an analysis of the constitutionality and the general validity of the agreement under the international law