It’s strange. My brother-in-law does not have criminal records, neither in his home-country nor in Canada. At the same time, he experiences serious difficulties when his PR is concerned, and nobody can explain what’s the matter. He managed to find out through the Court that there are some non-computer based records, but nobody says what are they about. It’s silly to say, but still - seems unfair that people who actually have records can be pardoned and continue living in Canada, while he does not even know what he’s supposedly accused of but still has problems. For example, when he files his job references to prove work experience in Canada, his files are sent for review after which they tell he didn’t work in Canada. Any attempts to clarify this with IRCC leads to no-response. There are many more examples, but I understand that’s not the subject matter, so let me thank you for all the information you provide.
I am glad to shed some light, but an NCB was a note and it could be a serious note that would need other actions to take place for some very serious people who no one would ever wish to meet.
The NCB in itself was a puff of informative air in a computerless world. Now the system has a defined section for "remarks" that serve the same function and are subject to release to the public, and that's relatively new to this litigious immigration environment.