That's too bad, she thinks. Technology like that, if it existed, could be tremendously useful.

She puts that aside for a moment, though. Something else to be saved for further exploration later on.

"As far as evidence goes, I suppose that doesn't matter," she admits. "I imagine identifying it would require expertise that I don't possess."

He could show her any piece of technology she wouldn't recognize and claim that it's a cloning device, and she's sure he knows that. The fact that he hasn't tried is, in a way, evidence in itself. It demonstrates a preference not to lie to corroborate his story.