Personally I am hopping that this kind of stuff does not become common place. I make my living doing on-site technical support and there are many times that systems need to return with me to my shop for repair. I have a very strict policy of whats none of my buisness. I am paid to fix the computer, I could care less whats on it. However, after a data recovery or even a backup in the case of a nuke and pave I always open a few files to make sure nothing got corrupted. I tend to just randomly click on a few pictures to make sure they open. However, my customers privacy is critical to my buisness. If you break that trust not only would you loose that customer but anyone else that they told.
On the subject of kiddie porn or abuse the rules are off the table. While I don't go looking for anything if I stumble across something like this, and definitions aside we all know what that is, then you belong in jail. I'm sorry but you don't f*ck with kids, there’s a line and that crosses it.