The auditor should assess the risk that errors and fraud may cause the financial report to be materially misstated and, based on that assessment:

design the audit to provide reasonable assurance of detecting errors and fraud that are material to the financial report.

plan the audit to search for errors or fraud that could be material to the financial report.

perform the audit on the basis that errors or fraud are likely to cause a material misstatement of the financial report.

apply substantive tests to detect material misstatements except those perpetrated by means of forgery or collusion.