I do not remember all the details of that Delphi request, the fact that I remember it at all is precisely because it was very unusual and rare. Delphi was not one of those places that usually asked for anything or got the approvals. Our reaction to it was: "What, now Delphi wants info? Delphi?! Of all places? Seriously?!"
I *think* they planned to give some post to some guy there, but had some doubts and requested some of his ethics records or something to that extent. But I do want to stress my memory is fuzzy on the finer details, so I may be wrong. But what I'm absolutely sure is that we did receive a request from Delphi, that it had the approvals and that it felt unusual for all of us.
It would really depend on the specific case. In general, a C/S would not likely be a part of our process. Unless of course if Inv was tasked to investigate some person or org in detail and then that particular C/S would prove a key source of information/witness/suspect/etc.
But no, in most cases there would be no reason for a C/S to come up and request old ethics information from continental Inv. No more likely than it would be for a C/S to contact OSA and ask for information about local SPs.
Local MAAs or EOs? Sure, that was more likely. Of course the chief public MAA AOLA would be far more likely to request, and get approval than some local EO in the sticks. But in almost every such instance, we would ask: "Ok, so why do you need this exactly? Are you having problems that you cannot handle yourself? Do you want us to look into this? (aka: "Are you an incompetent EO? Do you want to get in trouble and have us look into your area?").
This was really a big reason why people didn't just come up to us and ask for help unless they felt its really big and that they would rather take a smaller hit now, rather than suffer a catastrophic failure later on. In general everyone was eager to prove that they can handle their own job perfectly well and they don't need us coming over to look over their shoulders.
If it was our direct investigation, then most people did not hear that they were being investigated before our investigation was completed.
Sometimes not even then, that would often be bizarre.
Just imagine walking up to someone and saying: "Hey Joe, do you know that we were investigating you for embezzlement of CoS funds? The registrar said that you all of a sudden have a lot more funds on your account, he gave us your bank statements and they felt fishy. Also your wife and son wrote several KRs on you that sounded pretty credible. Plus we know about the affair you are having with that 20 year old lass and you are now taking her to fancy restaurants. We had a guy in upstat civvies follow you around just to check that. But yeah... our final conclusion is that we found no solid evidence this time, but we will keep an eye on you for the next 5 years cause you look pretty sketchy to us."
But if the matter was serious, we would spend a lot of time and effort to check things thoroughly and not allow ourselves to be noticed. I mena in one extreme case, we brought a girl from another continent to place her in a specific org just so that nobody would realize she is with ethics and that she would be able to offer us insight into the case.
I mean not all of our investigations were that serious. CoS being what it is, we got our share of utterly ridiculous cases. Investigating the charge of "Mr X sabotages the org by speaking Spanish with a stupid accent" - yeah that one ended up at Inv too. Because CoS.
But we were dealing mostly with staff and SO. Public rarely did something that would be big enough that local EOs couldn't handle it. And very high-profile public were not to be touched, these would be dealt with by the specialized people in Celebrity Center or by OSA etc.
In general external threats were OSA turf, as were things that were deemed to be very off-PR (think anything to do with Hollywood or anything to do with stuff like the Int base abuses or high profile lawsuits etc). Of course, we would step on each other's toes, because often the boundary was murky and our responsibilities did overlap. Looking at it now, I think that was by design. They wanted to have us separated.
Last thing: What I am telling you is how things looked in the 2000s. From what I heard, this looked pretty different in the 80s and before the digital age,