Do we know for certain that Section 31's existence is illegal? Certainly we know that some of their actions are reprehensible, if not illegal under Federation law. But Does that mean the organization's existence itself is a crime? The fact that the Fed Council and Starfleet Command both refuse to deny its existence, as well as the fact that Sloane appeared to wield both unofficial authority (kidnapping Bashir) and official authority (getting himself posted to the Bellerephon), suggests that Section 31 is an official organization that is sometimes acting improperly. In this sense, is it any different than when, in the real world, our treasury secretary doesn't pay his taxes? And given that we're told that Section 31 is part of the original Starfleet charter, isn't its existence legitimate?