There are very few.
In my brief presentation, I mentioned the case of an individual who is subject to disciplinary measures that could result in their compulsory discharge in the near future.
However, a video recorded during a social event at a golf club could exonerate this person of the misconduct of which he was accused. So we asked for a copy. A week or two after we submitted our request, we received a letter saying that the entire video was excluded from the file and that we couldn't have it. No other explanation was provided. It's astonishing.
This person's career is on the line.