We talked to Scott Prasser, senior policy advisor and CIS scholar. In his recent book, Scott argues hardly a day passes in Australia without a public inquiry or royal commission being appointed, a report being released, or someone calling for an inquiry to be appointed. Since federation, the Commonwealth alone has appointed nearly 140 royal commissions and some 500 other public inquiries. Some inquiries last for years and cost over $300million – others are more focused and economical. So what do all these commissions really do? What are their powers, and importantly what are their impacts?.