"You are to bring Lucius Kane to trial at once."
Those were the words handed to Commander Arturo by King Aleksander. Though they were said through gritted teeth, the truth of the matter was that the man in question had finally pushed too far.
Lucius committed more than a few crimes on the day of the attack on the academy. On top of that, the crown was facing immense pressure from the Church of Celestia to remove the noble from the city.
They could not do so without a formal trial and conviction of his guilt since the man was technically an envoy of Eroa. Both the King and the Church were aware of this. Due to the prophecy warning them about House Kane, the crown did its best to ignore Lucius' behavior, but when the Church confronted them with irrefutable evidence and eyewitness reports, his behavior could no longer be tolerated.
