This exactly. The cops need to have a leg up on the criminals to make their jobs worth doing. I don't believe that the playing field should be equal at all for the game to be fun for both parties cops need an advantage.

That's not what @Paratus said would happen. He implied that the cops would know that you committed an illegal act not what you did. By not knowing what you did it still requires the cops to try and figure it out so as long as you put in effort into covering your tracks you should be fine.