The Customs Minister says using cash can help hide exploitation

A ministerial advisory group has released its second report, criticising our response to modern crime and money laundering.

It shows cash and assets seized by Police - total just 4.2-percent of the 1.6-billion dollars criminals make each year.

Casey Costello says cash payments also aren't good for workers.

She says they make it very difficult to ensure workers are being paid properly - and getting their entitlements.