"Why before? This guy isn't going anywhere." They would definitely have to step up patrols. Maybe let a few people know, so they didn't spook him.
"I have no objections in doing that. I just want you to be careful. While that armor protects you a good bit, it's not perfect. We don't know when this guy is from or where. Or how he did what he did."
And she would definitely be joining him. He needed someone to watch his back. Shepard wasn't going to leave him to some wolf in their flock. "When do you want to do this?"