In January 1977, Annie Walsh was murdered in her Manchester flat.

Four months later, neighbour Robert Brown was arrested. Within 36 hours he'd signed a confession - a confession which he says was beaten out of him.

After spending 25 years maintaining his innocence in prison, the Appeal Court ruled his conviction was unsafe and he was released.

Robert tells Emma Barnett his story, and explains why he is now trying to change the criminal justice system.