When an auditor suspects that an unnamed employee is submitting and approving bills for payment, which of the following processes would be most useful in supplying additional proof?
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A
Use generalist audit software to find vendor bills containing post office box numbers or other strange details. Choose a representative sample of those invoices and link them to any supporting documentation, such as receiving reports
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B
Choose a sample of the payments made throughout the year and examine each to see if it is acceptable
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C
Select a sample of invoices paid during the past month and trace them to appropriate vendor
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D
Trace a sample of receiving reports to the authorized payment for the period that is the subject of the investigation. Note any elements that weren't handled properly