1. Member States shall ensure that all statutory auditors and audit firms are subject to principles of professional ethics, covering at least their public-interest function, their integrity and objectivity and their professional competence and due care.
Member States shall ensure that, when the statutory auditor or the audit firm carries out the statutory audit, he, she or it maintains professional scepticism throughout the audit, recognising the possibility of a material misstatement due to facts or behaviour indicating irregularities, including fraud or error, notwithstanding the statutory auditor's or the audit firm's past experience of the honesty and integrity of the audited entity's management and of the persons charged with its governance.
The statutory auditor or the audit firm shall maintain professional scepticism in particular when reviewing management estimates relating to fair values, the impairment of assets, provisions, and future cash flow relevant to the entity's ab
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