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Audit Evidence: Evidence and Reliability

During the course of an audit, the auditor examines a wide variety of documentation. Listed below are some forms of documentary evidence and the sources from which they are obtained.

1. Bank statement sent directly to the auditor by the bank.
2. Creditor monthly statement obtained from client's files.
3. Vouchers in client's unpaid voucher file.
4. Duplicate sales invoices in filled order file.
5. Time tickets filed in payroll department.
6. Credit memo in customer's file.
7. Material requisitions filed in storeroom.
8. Bank statement in client's files.
9. Management working papers in making accounting estimates.
10. Paid checks returned with bank statement in (1) above.
11. Letter in customer file from collection agency on collectibility of balance.
12. Memo in customer file from treasurer authorizing the write-off of the account.

Required:

a. Classify the evidence by source into one of four categories: (1) directly from outsiders, (2) indirectly from outsiders, (3) internal but validated externally, and (4) entirely internal.

b. Comment on the reliability of the four sources of documentary evidence.

Book:

Modern Auditing: Assurance Services and the Integrity of Financial Reporting (8th ed.) W. Boynton and R. Johnson Wiley, 2006 Hoboken, NJ

Solution Preview

a. Classify the evidence by source into one of four categories: (1) directly from outsiders, (2) indirectly from outsiders, (3)
internal but validated externally, and (4) entirely internal.

1. Bank statement sent directly to the auditor by the bank.
Directly from outsiders

2. Creditor monthly statement obtained from client's files.
Indirectly from outsiders

3. Vouchers in client's unpaid voucher file.
Internal but validated externally ...

Solution Summary

This posting classifies given examples of documentary evidence for an audit by source into one of four categories and also comments on their reliability. 315 words.

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