How the Commonwealth Bank tried to stop a royal commission by using dirt files, intimidation, threats and surveillance against whistleblowers and journalists. Reporter Adele Ferguson investigates.

Three dead dolphins turn up in an oil spill.

"Simone" arrived on a remote island to help asylum seekers. But she witnessed something there that convinced her to leak over 2000 documents. Reporters Paul Farrell and Maddison Conaughton investigate what happened.

When patients start unexpectedly dying at a regional hospital, nurse Toni Hoffman takes a big risk to blow the whistle on a negligent surgeon. But years later, it's still unclear why she was ignored for so long. 

Kathy Jackson was once heralded as a revolutionary who shone a bright spotlight on union corruption but she too was later found to be a fraudster who had misappropriated hundreds of thousands of dollars in union members' money. So who was the man responsible for blowing the whistle on her? 

Reporter Annika Blau investigates.

When an electoral officer helps police arrest a popular politician, her life begins to unravel. Her boss would spend more than a decade in prison, but she loses her job, and is even eventually admitted to a mental health institution. Now she’s asking: could he have been stopped earlier? Reporter Tynan King investigates.

What happens when a person blows the whistle on wrongdoing? 

A woman has lost the ability to speak and is forced to communicate by blinking. From her hospital bed she tries to blink out a request, but hospital staff refuse to help.

Background Briefing can reveal that similar situations are playing out in many public health facilities across Australia, as patients pursue their legal right to die, and healthcare workers say "no".

This week reporter and Dharawal woman Brooke Fryer goes inside a program that's helping violent men turn their lives around.

He left a trail of defect-riddled apartment buildings across Sydney and debts exceeding $600m to his creditors. Police have issued a warrant for his arrest. The NSW Premier has even offered to pay for his flight back to Australia. This week, Background Briefing tracks down the notorious and elusive Jean Nassif, who gives his first exclusive sit-down interview since he left Australia more than a year ago.