The easiest way not to get caught is to not commit a crime. The same principle applies here.
If they posted 'moderation rules' right alongside the ingame and forum ones, they would seem no out of the ordinary. But the classification (and I'm sure you can find out how an officer solves a crime) says nothing except 'we don't trust you not to fall back on our guidelines if we happen to mess up.'
As stated before, the classification of moderation guidelines is a useless thing and prevents the mods from ever doing anything wrong.
I never said knowing how it works was the easiest way so idk where that first statement came from.
To start you can find out parts of the methods of how to solve crimes but not all the inner workings. However that's irrelevant to this discuss. Now to answer the question that I feel you are partially asking, inno probably doesn't trust us at all. The mods simple have to comply with inno's level of distrust. I'm pretty sure if they could they would be open about these rules.
If you think a mod has done wrong report him or her to BT or Richie. I have full faith that BT would be fair.
In all honesty though I couldn't care less about knowing how the mods works given that I have never seen a mod do something wrong beyond human error. But it sounds like your problem is more with inno than it is with the mods. The mods don't have a say in this matter.