When an Australian company called Phoslock first hit the market, its sell was hard to resist.

Phoslock had created an innovative clay product that had the power to get rid of pollution in waterways around the world. 

But a new investigation reveals a host of worrying allegations against the company including suspected bribery, money paid to dump polluted water and an alleged cover-up of a wrongful death.

Today, investigative reporter Nick McKenzie on the suspect behaviours that led to Phoslock’s alleged wrongdoings and how they remained a secret for so long.