The recent Colombian peace negotiations took the art and science of negotiating transitional justice to unprecedented levels of complexity. For decades, the Colombian government fought a bitter insurgency war against FARC guerrilla forces. After protracted negotiations, the two parties reached a peace deal that took account of the rights of victims. As first-hand participants in the talks, and principal advisers to the Colombia government, Mark Freeman and Ivan Orozco offer a unique account of the mechanics through which accountability issues were addressed. Drawing from this case study and other global experiences, Freeman and Orozco offer a comprehensive theoretical and practical conception of what makes the 'devil's dilemma' of negotiating peace with justice implausible but feasible.