Yeah, so what Light describes at 17:00 or so, is that Kira is infiltrating the police/has access to the police, and so they should split up and investigate. And noone reacted. Wtf. Are they stupid or something, noone can come up with that theory unless it was *cough killer, since Light was describing exactly what he did. Anyway, there’s only a few of them on the team, even the Yotsuda company managed to figure out who the killer was by deduction, but these guys can’t.