Thats not part of the laws though, is it? I'm not looking at a copy of them, so I don't know. I thought it said no helping a criminal, i.e. fighting tribunals with them, fighting special guards, etc. He wasn't doing that there, since the criminal was already dead.

I don't see where a Rager would care about a Justicars' rules for having special guards. The only thing that should matter to him, is weather it's against the laws or not.