The seminal (New Zealand) case recognising the scope of restorative sentencing goals is R v Clotworthy 1998 [full citation, link]
This is a database of restorative justice (RJ in its short form) case law designed to be used for precedents to make submissions on sentencing in criminal courts. It provides easily accessible material to support an argument that restoration should stand alongside retribution (denunciation, censure, punishment) and consequential outcomes (deterrence, rehabilitation, prevention) in sentencing offenders.
Justice is done restoratively when we . . .
Focus on the harms done, rather than the laws broken.
Show equal concern and commitment to those harmed and to those responsible for the harm, involving both in the process of justice.
Work toward the restoration of those harmed, empowering them and responding to their needs as they see them.
Support those responsible for causing harm, encouraging them to understand, accept and carry out their obligation to repair the harm and make amends.
Recognise that while such obligations may be difficult, they should not be intended as punishment and they must be achievable.
Provide opportunities for dialogue, direct or indirect, between all those directly involved or affected, as and when appropriate.
Find meaningful ways to involve the community and to respond to community attitudes and feelings about the incident.
Encourage collaboration and reintegration rather than coercion and isolation.
Give attention to the unintended consequences of our actions and programmes.
Show respect to those who have been harmed, those responsible for the harm, and justice colleagues.
From D R Brookes, Restorative Justice And Work-Related Death: Literature Review, Creative Ministries Network, 2008 http://papers.ssrn.com/sol3/papers.cfm?abstract_id=1459862 and adapted by him from Mika, H., and Zehr, H. (1997) Restorative Justice Signposts (Bookmark). Akron, PA: Mennonite Central Committee and MCC U.S.
Here are some of the main areas of restorative justice
An important (New Zealand) case recognising the scope for restorative processes to achieve retributive purposes sentencing goals is R v Junior Sami 2005 DC AK [14 October 2005] [full cita
The seminal (Canadian) case recognising the place of restorative sentencing goals is R Gladue  SC Canada [full citation, link]