Hollywood may have desensitised us to violent crime and portray forensics as par for the course, but back in 1960, the kidnap and ransom of eight-year-old Graeme Thorne shocked the nation and confronted police detectives with circumstances they had never before encountered. Senior Crown Prosecutor and storyteller, Mark Tedeschi, talks to award-winning investigative journalist Linton Besser about writing true crime and corruption, how the investigation of crime and wrong-doing has changed, and the power of the media to be a force for good or fear.