Stephen Long

The children of Australia's meth crisis. Thousands of Australian babies are born exposed to their mother's drug use every year. An investigation into what's being done to tackle one of the hidden side effects of the drug epidemic is conducted.

Undercover operatives and secret informants have been crucial in the fight against organised crime. Reporter Mahmood Fazal dives deep to find out what happens to these people once the operations have finished and the criminals are behind bars.

Exposes criminals, opportunists and registered providers who have been busted exploiting loopholes to overcharge and defraud the NDIS.

Inside the hidden system locking people up indefinitely. Four Corners reveals allegations of the torture and mistreatment of people living with disabilities and mental illness who are locked up by the state.

The new legal tactics are blocking justice for survivors, so Louise Milligan goes inside the legal fight as lawyers representing victims face institutions pushing to have cases thrown out of court altogether.

Lifting the lid on the shadowy underworld of Australia's cocaine supply chain with unprecedented access to traffickers, importers, street dealers and high-ranking cartel operatives.