It’s been five years since former tax officer Richard Boyle blew the whistle on aggressive debt collection tactics used by the Australian Tax Office which he claims ruined people’s lives. Now he could face jail time for going public, but this week he will argue that he’s entitled to immunity from criminal prosecution under Australia’s whistleblowing laws. Reporter Christopher Knaus explains to Laura Murphy-Oates how this case is a major test of Australia’s whistleblower laws