As I have read in this forum I understand that it is not auditor's responsibility to find out each and every error; however there must be some basic things which should not be missed.
Let me give a more specific example. In case of audit of an organization, lets say manager writes an account book where he has indicated that Rs.X is credited to bank account (this brings down the cash on hand). However, the money never really went to the bank.
Is it fair to expect from an auditor to check both organization's account books and bank account transaction details and alert the management that money might have gone missing.