Agenda 9.12.24 - does prison work?

Does prison work? Clearly it protects us from people who’ve shown a willingness to harm fellow citizens; and it acts as a deterrent to people who might be thinking about committing a crime. It’s less successful in rehabilitation of offenders though and Andrew Neilson from the Howard League for Penal Reform believes that in some cases more effective and lower cost alternatives are available. Surely half an hour listening to Agenda would be enough to soften the hardest of criminal hearts?