True! But "Does Javert know Thenardier is involved with Patron-Minette yet"? is a more open question. (The casefile I'm playing with is about Javert following up on loose ends from the Thenardier arrests - hence Pontmercy, hence Courfeyrac - so I'm paying closer attention to what he does and doesn't know, when, than I might otherwise. So the question of who he thought the Old Man was is quite relevant here - things-gleaned-from-fanfic gave me the impression he didn't know, and didn't waste a lot of worry on it, in true melodrama-dramatic-irony tradition; canon is giving a much more complicated starting place. As seems to be the case with All Things Javert.)