He did not accuse Salazar of high treason, he simply asked that every single member of the Vandergruff family is to be detained and brought to him so they would be interrogated.
It is not a big deal though but just thought I would point it out.
I will post, but I need to know why your character is accusing Salazar of treason please. Icly Salazar did not do anything suspicious so I find the fact that you are accusing Salazar is pretty weird tbh.