Don't worry, I don't underrate the cops. But cops can't break a guy's arm to make him talk, and they can't shove his teeth in with the muzzle of a.45 to remind him that you aren't fooling. I do my own leg work, and there are a lot of guys who will tell me what I want to know because they know what I'll do to them if they don't. My staff is strictly ex officio, but very practical.