I am Rufus Scrimgeour, outlaw, treasonist, whatever the hell you want to call me. Let us dispense with pleasantries and get to the point. You're a death eater. Fenrir is your whipping boy. He is killing innocents in order to convince us that we should give him the killer of Aaron Pryce. I doubt you give a damn about innocents, and frankly neither do I -- but if he is caught in the process, your little charade about him being in Azkaban is going to go to hell, and your people will be exposed for what they truly are.
You decide what's more important, some muggle werewolf or your illusion.