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Professional skepticism is important because without it auditors are susceptible to
accepting weak or inaccurate audit evidence. By exercising adequate professional
skepticism, auditors are less likely to overlook unusual circumstances, to over generalize
from limited audit evidence, or to use inappropriate assumptions in determining the
nature, timing, and extent of audit procedures. An auditor who is professionally skeptical
will do the following:
• Critically question contradictory audit evidence
• Carefully evaluate the reliability of audit evidence, especially in situations in
which fraud risk is high and/or only a single piece of evidence exists to support a
material financial accounting transaction or amount
• Reasonably question the authenticity of documentation, while accepting that
understanding.
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a. Scharfman appears to have conducted sham audits in each of these cases. He
accepted engagements and then completed them in a number of days, rather than