Introduction: The financial reporting system has always been confronted with crisis in attracting public trust. The increase in the number of managers' frauds which has often accompanied fracture of great companies with the world had caused some worries about quality of financial statement along. So, prevention or detection of fraud in financial statement has always been the focus of inventors, managers and auditors. Thus, because of its controlling trait (detecting & deterrent), using independent auditing services results in quality increase of financial statement creating enhanced value of accounting information...