Vanilla is a product of Lussumo:
Documentation and Support.
...under FreakAngels law.Not that there is any law to speak of. Kait pretty much keeps the peace, but so far as we can tell, aside from the Big Rule (using the package on people without their consent--which is itself employed in some pretty gray situations), there isn't really a codified set of laws. Which is part of the problem in the current situation. With no governing laws and no precedent, it's going to be hard to come to a successful and just "verdict."
It's interesting to me that Jack was doing what I hear guys frequently fantasize about - killing someone who (supposedly) needs killing. But the reason it's interesting is that a. I never see my guy friends do it despite us knowing girls who have been sexually victimized (folks, if one in four girls has been sexually assaulted then you know a girl who's been sexually assaulted, and therefore are highly likely to know a sexual aggressor)Not to distract from your point about sexual violence, but I don't think Jack is particularly thrilled about killing people, nor do I think he "fantasizes" about it, but he sees it as a necessary means to the end of continued survival of his tribe.
Furthermore, Sirkka very clearly doesn't buy that it was necessary, and she too has been willing to spill needed blood in defense of her home.This was a threat from within the tribe, thus making it much less clear-cut than a threat from outside. Us vs. Them, and all that.