After chatting with Captain Reina Ember, Ves grew more comfortable with the Xona Stalker defectors.
Certainly, he had no doubt that the former intelligence officer of the Life Research Association presented a very deliberate image to him. His experience with spooks like Calabast and Leland taught him that each of them were very adept at social engineering. They consciously molded their behavior to appeal to whoever they spoke to and employed several techniques to increase their favorability.
That said, Ves didn't need to worry about the former Xona Stalkers doing anything detrimental to the clan. First, they needed to pass Goldie's loyalty test. Afterwards, their connection to the Larkinson Network made sure they developed a sense of belonging in the clan.
If that wasn't enough, he was pretty sure that Calabast would monitor them as well once they became a part of her Black Cats.