Betty Anne Waters dedicate close to two decades of her life to righting an injustice, fighting her brother’s wrongful conviction for murder of his female neighbour, in Massachusetts, in 1983.

Waters struggled for justice over 18 years. A high school dropout, she worked as a barmaid to put herself through law school, starting at community college, on to a four year degree and finally reaching law school – all with the intention of gaining the knowledge needed to prove her brother’s innocence.

The story, from the wrongful conviction to the eventual exoneration, proved so compelling that it was told in a Hollywood film, the 2010 Conviction, starring Hillary Swank.

This weekend Waters was in Dublin, speaking at a film festival organised by the Innocence Project.

She came into the studio to speak with Chris Donoghue, telling her story.