"I must disagree with you, Signore," Q said in response to G's assertion that the files had been stolen. As he spoke, he began miming an aggressive advance of chess pieces in front of him. "If this Kira is any bit as clever as the last, he wouldn't be foolish enough to possess enormous amounts of classified data and paperwork relating to the case. There is too much potential for a security leak, too much potential potential for a witness. If he were caught with even a portion of it, that would be checkmate. However, simply leaving the files untouched would give us a distinct advantage in tracking him down, so he would want to deal with them in some way, assuming he does have the power to do so." He paused a moment and turned the invisible board in front of him around; now he was playing on the other side. "Ensuring their destruction would level the playing field without leaving any evidence, and while it is possible that he may have gotten a brief glance at the data, I imagine it would be too much for him to sift through in a timely fashion. It would be safer just to test his new power. Still, I do agree that the probability is high that we are dealing with somebody in law enforcement."