sufficient evidence not available???

The One Says:

The Auditor would, depending on the facts and circumstances of the case at hand and depending on factors such as materiality and gravity of the error or insufficiency of evidence or where the auditor is not satisfied with the explanations given by the managment, take either of the following courses of action:

1. Qualified Opinion (The Financial Statements give a true and fair view except for the following or save the following.........)

2. Adverse Opinion (The Financial Statements do not give a true and fair view........)

3. Disclaimer of Opinion (Insufficient Evidence or Management Pressure or Scope Restriction)

The Auditor should ideally find a way to get satisfactory presuasive evidence before taking recourse to the aforesaid.