The Luminatii Legion, or short Luminatii is the military of the Itreyan Republic. In the words of the narrator they are, for the most part, intent only upon crimes that upset the people who pay their wages – the Senate of Godsgrave. So long as the criminal elements of the city keep to killing themselves and staying below the Hips, the Senate could give less than a tinker's cuss about the murder of an inkfiend who crossed the wrong people, or a pimp who bet the wrong gladiator in the arena. The Luminatii aren't a tool of law and order in the Itreyan captial. They are a tool of the status quo.