David quickly shot himself over the ice, he grabbed the handcuffs and before anybody could even blink had already cuffed the original suspect's hands together, he then shot out in the direction of his accomplish. "Threatening the people who keep this city from falling into chaos is a felony. Now I didn't see you transmute those ice things, although this flame guy obviously doesn't have the ability to do it, so I'm willing to let you off with a warning. If your friend was clearly defending himself, he has nothing to worry about. We uphold peace and justice in this town, so he will be released. However if you do not just walk away now I will have no choice to arrest you as well. Anything you do now will effect both you, and your buddy over there. David said trying to show off as well as diffuse the situation.
David then rocketed himself across the ice once again by manipulating the air, but this time instead of heading back to where he started, he shot past and grabbed the fire alchemist. They were now each in a position where if the lines were connected between them, an alchemy transmutation circle would have been made using each of them as corners.