It has often proven valuable to have the proposed audit task plan reviewed by an experienced auditor who is outside the audit team. Such reviews may raise issues that were not considered by the originator of the plan and that suggest the need to modify the plan in material ways. In an “audit office” with a hierarchical structure, such a review is typically required by office policy and is usually carried out in two stages by supervisory levels above that of audit team leader. In a more decentralised SAI, such as some “courts.
