In part two of the investigation into the deaths of Ray and Jennie Kehlet, reporters Rebecca Trigger and Ash Davis examine the story of the last man to see the couple alive. And they speak to a police insider who raised concerns about the direction of the investigation back in 2015.

Two campers go missing while prospecting for gold in the Western Australian outback.

Australia's migrant workers can wait for years to find out whether they can stay here, and while they do they can become targets for opportunistic operators offering a short cut.

As a teenager, Remy learnt to survive by hustling on the streets of Parramatta.

The consumer genetic testing industry has become big business.

Background Briefing will be back in a few weeks.

In a nursing home lives an elderly man who is being held against his will.

Reporters Geoff Thompson and Annika Blau investigate how Australia became the first country to give scripts for trips.

In the second and final episode of Dead Man's Secrets, reporter Josh Robertson investigates the grisly murder of the powerful Papuan executive who negotiated one of Australia’s biggest foreign assistance packages.

A shocking murder takes place in the Eastern Highlands of Papua New Guinea.

When two infants die after being left inside a hot car, their family seek answers to how this could have happened.

Queensland authorities failed to heed multiple serious warnings that a young pair of sisters were in danger, before it was too late.

Kate thought she'd finally found a psychiatrist who cared about her.

Massoud was heading to a protest outside Tehran's embassy in Canberra when a phone call confirmed his worst fears had come true.

Protesters say they're being ordered to read false confessions and their activities are under surveillance.

It's one of the most effective forms of contraception available.

There's a violent territorial dispute between rival gangs in Sydney’s west.

Charles Batham has been in hiding for years, and after two narrow escapes the trail goes cold. Then, reporter Erin Parke gets a tip-off that that brings the global investigation back from the brink – but will the truth ever come out about Batham’s dark past?

A tall, eccentric Englishman with a secret double life flees Australia. For nine years he remains on the run. What he doesn't know is that two Australian women are tracking his movements from afar. Reporter Erin Parke was one of them.

When Jordan wanted to treat his insomnia, he turned to an experimental therapy: medicinal cannabis.

Precious artefacts looted from Cambodia and Thailand made their way into prominent collections here in Australia, and around the world. In the second and final episode of his investigation, Mario Christodoulou investigates why it’s taking so long for these precious works to be returned to their rightful home.

Many ancient Cambodian artifacts arrived in Australia during the 1960s and 1970s, when the south east Asian country was in turmoil. Mario Christodoulou investigates how some had come from looted historic sites or passed through the hands of suspected smugglers, and now feature in major galleries around the world.

Did you know that some of Australia’s largest public hospitals are run according to a religious code of ethics? 

There’s new mind-bending technology that creates immersive media from scratch.