The concept of justice covers a broad spectrum of human existence concerns and is defined according to established relationships that always put the human person as reference. The web of relationships that creates the conditions for the existence of justice involves the notion of law and rights that makes justice so diverse. Restorative justice and peacemaking circles are framed within the classical theories of justice, namely positive law theory, social good theory and natural right. This chapter explores two main points, firstly an exploration of the theory of justice, and secondly restorative justice (programmes, accountability and sanctions, peacemaking theory, contrasting the mainstream justice theory and justice peacemaking circles, and critics of peacemaking circles).