On November 30, 2016, after much uncertainty, the Colombian Congress finally approved a historic peace deal between the Colombian government and the Fuerzas Armadas Revolucionarias de Colombia (FARC), bringing to an end the country's fifty-year conflict. This peace deal was a historical achievement, and had important ramifications for international law, as discussed in a recent AJIL Unbound symposium. But once the spotlights were off, the government was faced with the daunting challenge of implementing the complex, lengthy accord. In particular, the government had to draw up and pass through Congress the legal and constitutional framework for the transitional justice process—a key component of the peace deal. It is there, in the subtle details of domestic criminal law, where the balance between peace and justice must be achieved.