Picard said they have no laws to judge the Douwd for telepathic genocide. But it's not about legal judgment, it's about her being both the hero of this movie and a snarky genocidal people eater, no matter how which laws would apply 
I'll give them the benefit of a Douwd and hope they do address it, and that she realizes her flaws and expresses remorse etc. and ends up doing something really good. Perhaps she brings down 31 so it's officially erased from all records to lead into the version from DS9.

I'll give them the benefit of a Douwd and hope they do address it, and that she realizes her flaws and expresses remorse etc. and ends up doing something really good. Perhaps she brings down 31 so it's officially erased from all records to lead into the version from DS9.