Media playback is unsupported on your device

A look inside one of Afghanistan's progressive prisons

4 January 2013 Last updated at 09:13 GMT

The prison system in Helmand province in south-west Afghanistan used to be violent and uncontrollable.

But reforms have turned one of the main jails, in Lashkar Gah, into a model prison, which aims to rehabilitate prisoners not just punish them.

David Loyn reports.