In this chapter I explore how the edge of law has been constituted and transgressed in the operation of the WCC. This requires an expanded legal geography of the court’s activities, to trace how the fulfilment of trials at the court has required the enrolment of civil society organisations to both communicate the legitimacy of the new legal institution and to assist with the practical activity of supplying witnesses and material evidence. Theoretically, this contributes to work that has sought to decentre legal processes within the operation of transitional justice, to think through the wider array of social actors that are complicit and necessary in successfully operating processes of transitional justice. While legal practices are rightly key elements of transitional justice responses, these operate through and summon into existence a series of non-legal spaces and actors.