Home 20 Critical Questions Series 20 Critical Questions Series In response to requests from our members, we are launching new reference papers 'The 20 Critical Question Series'. The IIA–Australia will progressively add further ’20 Questions’ documents on topics such as governance, risk management, compliance, fraud and corruption, and other relevant topics. What Directors should ask of Internal Audit What Directors should ask of their Board What Directors should ask of their Audit Committee What Directors should ask of Assurance What Directors should ask of Corporate Governance What Directors should ask about Internal Audit Service Providers What Directors should ask of Not-For-Profit Governance Members may like to suggest topics by emailing andrew.cox@iia.org.au.