New Zealand has one of the highest imprisonment rates in the developed world and more than half of those released from our prisons find themselves back behind bars within five years. Ideas takes a look at imprisonment and rehabilitation, and asks what works and what doesn't. Chris Laidlaw talks to Anne Opie the author of 'From Outlaw to Citizen: Making the transition from Prison in New Zealand'; and Eugene Ryder, a community advocate and Black Power member, reflects on what convinced him to change his lifestyle to ensure he never sees the inside of a prison again. Produced by Jeremy Rose.