内审职责范围很广：A function of an entity that performs assurance and consulting activities designed to evaluate and improve the effectiveness of the entity’s governance, risk management and internal control process
建立：Control procedures such as installation of CCTV to make sure that inventories will not be stolen.
Risks management procedures to identify and deal with different types of risks properly.
确保：Good information system is in place to make sure that management will receive timely, relevant and reliable information.
Monitoring: Implementation of the internal control procedures by the internal auditors.