Watching the taller man come closer he considered this move a bit longer. Of course it would have nulled everything. He just wanted to make it a point, now, how hard this was to him. Perhaps not his finest moment, but he needed to make this clear to the man. This was a big deal.

Taking the extended hand he gave the man a firm deal shake. "A deal then." And then from his pocket he pulled a thin gold looking device, strong, bracelets like thing. He held it up to the man.

"Put this on. Left wrist please. Once that's done I can escort you to your area." It was just a tracking and magic dampening device, something connected to JARVIS and nothing more. No shock or pain would come form it, but once attached, only Coulson could undo it.