One can say that Javert is our conscience. The ever lurking presence of the law and our own condemnation. The tension between who we were and who we are and who we can be. Javert represents that inescapable, shameful past that forever haunts and persues one's conscience. Javert is the man of the law, and... There are no surprises with the law. The principle of retribution is simple and monotonous, like Euclidean logic. It's closed to all alternatives and shut up against divine or human intervention... Indeed, Javert represents the merciless application of the law, the blind Justice that in the end is befuddled by hope and the possibility of redemption without punishment.