Cassiline,
I'm out and gone from the borg now, but as an elder, I was very careful not to reveal ANYTHING to my wife/family/others about any Judicial stuff I was involved in. Even to the point of not telling my wife who/where I'd be going with/to when out on that kind of work. I think many sincere elders follow/followed this policy, we were reminded about it often enough.
It used to burn me up to hear about other elder's "loose lips", and I was not shy about pointing out how unkind it was to spread other's private faults around like that.
Actually, to this day, I have maintained as confidential stuff I learned about others while an elder, though like other former elders here abouts I may talk about the substance without the detail, to enlighten others.
I think you also asked about being told the reason for a Judicial Meeting: Absolutely a person should be told "why"..... An accused person might be able to bring witnesses to such a hearing to refute the charge. Sadly, many elders seem to go for the "lying in wait", ambush-type judicial meeting (sort of a Mike Wallace-type thing, if you will). Thinking to be able to break down the resistance of a potential liar, etc. This was the unkind/unchristian/inhuman approach taken towards Ray Franz, as related in his book Crisis of Concience.
Most elders have not sat on the "other side of the table", and I think many would change their approach if they ever did.
>>Edited for clarity of thought DUH <<