Indeed, Xenos

The Inquisitor of the Ordo Xenos overseeing the negotiations for the cessation of trade between Hive City Praecipitium and the Tau Empire. She sees no benefit to the Imperium; an unnecessary subversion of planetary resources that carries with it an unacceptable cultural shift. Full scale war is out of the question this close to Tau space, with most of the Imperial Navy engaged with Tyranid and Ork incursions.

Despite her misgivings, she employs the use of a sanctioned Xenos to act as a translator. Just what else is this Inquisitor up to...