It looks like this topic has changed into a 'how to bash agencies without knowing details' instead of ccr crossovers. That is a report about an accident in Mexico, and was not in a course or so. Also there is a police investigation done. Has nothing to do with an agency. And it has nothing to do with ccr diving as the divers were on oc I believe.
In my country I had to show a proof to my cmas agency that I never sexual abused children to stay in active status as instructor. Why? To make at least a safe feeling for the parents. Does it help? Yes for sure. It will not garantuee for 100% that nothing will happen with your child by someone, but at least normally there is no sexual abuse done by the instructors with that proof. Other agencies like iart, tdi or iantd don't ask for this. But I have this 'VOG' (this is how it is called here).
Does this proof means there will no incidents happen? No. But some people won't become instructor now. But they can become for other agencies.
If I get an accident, for berndo it will be the fault of iantd, for sure. But is this true? I also teach for other agencies, I have certs from way much more agencies. I am allowed to found my own agency. So who is wrong then? In my eyes not the agency. Maybe I am wrong, but maybe it is just bad luck. And to judge, there is a police officer and investigation and a real judge. That investigation is not done here on scubaboard then.
But every instructor will have a very bad feeling if a student dies, for sure. Agency independent. I hope I will never have to deal with this.