Striking a balance between peace and justice has long been debated by scholars and practitioners. There has been definite progress in a world in which blanket amnesties were at times granted with little hesitation. There is a growing understanding that accountability has both pragmatic and principled arguments in its favor. Practical arguments as much as shifts in norms have created a situation in which the choice is increasingly seen as "which forms of accountability" rather than a stark one between peace and justice. The Colombian Justice and Peace Law 975 and its implementation offer an interesting and unique approach to dealing with the international crimes committed in Colombias decades-long armed conflict. Yet, will this approach suffice with regard to Colombias obligations under international law to investigate and prosecute international crimes? Does it meet the standards of the ICC, which has been monitoring the Colombian situation for some time now? In particular, does it pass the complementarity test laid out in the ICC statute or will the ICC have to intervene in Colombia to enforce international criminal law?

Law 975 and its process.- Preliminary Remarks.- The Process Under Law 975.- Intermediate Conclusions.- The complementarity test (Art. 17) and its application to the Colombian situation.- Preliminary Considerations: The Object of Reference of the Complementarity Test (SituationCaseConduct).- Gravity and Complementarity Stricto Sensu.- Conclusion: Classifying the Colombian Case with a View to Different Transitional Justice Scenarios.- Some Recommendations for the Further Application of Law 975.