Julian stops--well outside a range, he thinks, that could be considered an imminent physical threat. His reaction time, enhanced as it is, might be enough to help him should the man decide to let go of the other officer and come at him--but he doesn't plan on fighting today.

"Leaving is something you'll have to take up with the being that brought you--and I--here, I'm afraid."

His hands are still well in sight. He doesn't want to offer any threat, nothing that will make life more difficult for this man's captive. Julian keeps his voice level and calm.

"We're on the Federation starship Enterprise. You've been brought here by an extradimensional being that we call Q."