INTOSAI’s fundamental auditing principles recognise that due to the differing approaches and structures of Supreme Audit Institutions (SAIs), not all auditing standards apply to all aspects of their work1 . Furthermore, on the basis of the terms of the audit mandate with which SAIs are empowered, any auditing standards external to the SAI cannot be prescriptive, nor have a mandatory application to the work of the SAI 2 . However, in order to promote high quality work across its members, INTOSAI advocates that each SAI should establish a policy which has regard to INTOSAI standards, and other specific professional standards,.