You will also see me rant on several places about making the Objective Evidence retrievable. Let s say you are auditing and find that employees are not signing off on their operation on a traveler. Typically a number from the job will do, but many auditors will also take a photo-copy of one or more samples found as evidence to accompany their report. This is very common in financial, military manufacturing and other high risk situations. As I believe we all know, more than once a document (or situation) has been changed after the auditor has left. Some folks call this fraud, which sounds serious. Ummmm, well it is fraud. The situation will determine how serious it is.
The reason auditors ask for a signature on the finding at the time the nonconformance is identified and recorded is to ensure all agree to the evidence.
Most of the time, whether or not there is a nonconformance will be indisputably evident at the time of the finding. However, this depends upon many things including how blatant the findings are, but also - you may have a real hard butt auditor. (The above is from Registrar_NC_Record.xls)
Objective Evidence II
By signing here you should only be agreeing to what was found / observed. You should NOT be agreeing that there is definitely a nonconformance.
ISO 19011 - Quality and Environmental Management Systems Auditing Forum Discussions