The objective of reducing violence is particularly interesting.
http://restorativejustice.org/restorative-justice/about-restorative-justice/tutorial-intro-to-restorative-justice/
Restorative justice as a path to reducing violence in the world.
On The Media has an episode on this https://www.wnycstudios.org/podcasts/otm/episodes/on-the-media-restorative-justice
Both in prisons, under the criminal justice system, and online.