c. The internal auditor should guide the conversation from general to the specific.
1) Open questions are generally used early in the interrogation, and closed questions are used later as the auditor comes closer to obtaining a confession.
a) Open questions are of the type, “Describe your role in the vendor approval process.”
b) Closed questions are of the type, “ Do you personally verify the existence of every vendor who seeks approval?”
2) Normal interviewing methods regarding nonthreatening tone and close observation of body language apply.