I understand that the allegations that were levelled against the crew as a result of a CAIR report (ATM machine I know!). If this is correct then it is very difficult for the 'witness' to be cross examined in court as to what they observed- unless they have subsequently come forward.
I understand why there is a CAIR system but to use it for something like this shows a fundamental lack of understanding as to what the system is supposed to be able to do.
PS: If I have it correct and it was a CAIR report then a fine or other arbitrary penalty would be massive denial of natural justice. I'd fight it hammer and tong and expect my union to spend whatever it took to clear my name.