Most of us would think of Australia as a trustworthy country, largely free from corruption and dirty money, at least in a global context.

But, if that's right, why has Australia been pointed to as one of the top targets in the world to launder money through real estate? And why have several major institutions in Australia been linked to money laundering?

Nathan Lynch is an expert on financial crime and the author of a new book, The Lucky Laundry.