Faolan raises his eyebrows slightly, glancing down at the box before looking back at Sirius himself and just shrugs. What else is he supposed to do with the thing? It's evidence, part of the investigation, and they need it on hand if they want to do any more investigating of the physical object itself. It might be a clue, or several for that matter. Although the fact that it's a decapitated head and it's sitting in a box on the floor in his office... Yeah. It is rather disconcerting.

"We've been tasked with solving the mystery of the head in the post," Faolan says, leaning forward over his desk and sighing slightly. "I figured we'd call in whoever we could to get what they could from this, and then go from there. I mean. It's a head in a box. Sent to our benefactor. That's really all we know to start with at least."