'Surprised authorities there have never asked for him to be extradited' - Canadian Professor of Law Kathleen Mahoney

Yesterday we heard the shocking interview with church pastor and self-confessed paedophile Henry Clarke. He admitted abusing boys at care homes in Northern Ireland. He's never been brought to justice - but the BBC tracked him down in Canada. Stephen has been speaking to Kathleen Mahoney, a Professor of Law at the University of Law in Calgary in Canada and asked her for her reaction to this story.