He completely removed himself from the Paris systems when the MoP demanded that. However, the last thing we knew is that he was driving one of the child catchers, so he may have been back in, but only in a very limited sense. Alternatively, he removed the child catcher from the systems, in which case he wouldn't be. Further, even if he didn't remove the child catcher from the systems, although Colette possibly could have noticed him, unless he went a lot further than that since then, I doubt she would have.
A) Hackers and spies can't be civilians?
B) Why would you say it's not outlawed? The disappearances made it seem pretty outlawed to me. Even if a rule is enforced situationally or sporadically, it still exists.