Of all continents on Earth, none preserve the story of the formation of our planet and the evolution of life quite like Australia.
This two part series deals with the use of forensic science in murder investigations.
1. Final Payment
In 1996, Rob Riley, the most prominent Aboriginal activist in Western Australia, was found dead in a motel room in Perth. This program tells his story.
Four Corners asks 'what has changed' since the 1989 Fitzgerald enquiry exposed high level corruption in the Qld police force.
This is an exclusive look into the workings of the Territory's unique bush courts.
While debate rages over Australia's border security, there's growing evidence that the greatest threat to Australia's national security potentially comes from foreign computer hackers.
Scott Johnson was a young man with everything going for him - a maths genius with a bright future. But on a trip to a Sydney beach one sunny day in 1988, everything changed.
Nelson Mandela promised a South Africa based on freedom and equality.
Every hour of every day, our digital interactions are being recorded and logged.
Over half a century Rupert Murdoch's business audacity and political shrewdness built one of the world's most powerful media empires.