In April 1990, Strangeways prison in Manchester was subject to disorder and protests that lasted weeks.
It was the longest prison disturbance in British history.
This concluding episode looks at what's happened in the 30 years since the Strangeways riots, asking fundamental questions about what prison is for.
Strangeways governor Brendan O'Friel; Lord Woolf; Professor Joe Sim; Former prisoner and journalist Eric Allison; Professor Elaine Player; Dr David Scott; Safe Ground's Charlotte Weinberg.
The 25 Days in April episodes were produced with the Centre for Crime and Justice Studies, and funded by the Barry Amiel and Norman Melburn Trust.