The Ballad of Adler Young, Canto 2.5

You know I still want to point that Addler could just say "I have not betrayed the empire, I have protected my brother from a Vulpitian plot to destabilize the throne as i swore my father I would on his deathbed and I didn't not participate in the muder of any SALV FAuxFox' and it should bea big factor in his favor because ELVES .DO .NOT .LIE. Drect denial should be a big deal.

That's the thing, isn't it? Since everyone always telling the truth makes determining guilt trivially easy, I'm assuming that this whole court case is a sham meant to get rid of Adler. We don't know yet who is behind it, but we can make some good guesses: Vulpitanians want to see the empire destabilized. A Mephitist loyalist (Theo?) wants to get rid of Sisterhood influence in politics. Adler siring a heir is a threat to queen Edessa.