Under what circumstances would internal audit not become involved when intentional misconduct is suspected?

Which of the following would most likely contribute to discrepancies between receiving reports and the number of units in a shipment?

As a result of a recent discovery of false information on employment applications, an internal auditor has reviewed hiring procedures. Which of the following represents a weakness in the control system?
I. Applicants are not required to have their signed applications legally authenticated.
II. Applicants' educational information is not validated with the educational institution before employment is offered.
III. Information related to applicants' long-term work history is not validated before employment is offered.

An internal audit activity is participating in the due diligence work for an acquisition that a
company is considering. One engagement objective is to determine if the acquisition's accounts payable contain all outstanding liabilities. Which of the following audit procedures would not be relevant for this objective?

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According to IIA guidance,which of the following is true about the supervising internal auditor's review notes?
They are discussed with management prior to finalizing the audit.
They may be discarded after working papers are amended as appropriate.
They are created by the auditor to support her fieldwork in case of questions.
They are not required to support observations issued in the audit report.