These include a community academy and a mentoring system by former gang members which has helped to halt juvenile homicide in the area.
The series is the result of a five-year search to chronicle the best practice in administering youth justice from around the world.
Graef says "Many of the ideas put forward in the programmes could directly influence British policy. Now at last there is an approach to youth justice which does not just leave it to the cops, courts and prisons but is dynamic, imaginative and effective."
In Search of Law and Order
Sundays from February 7