phone conversations, mail, and we'll gather some intelligence out of this. if nothing else, we'll get that. >> this one? >> it's a game to the dog. they're trying to find their toy. that's how -- that's how they're trained. after a while, they don't find anything, you get tired, you get bored. >> here, boy. >> that's why we try to hit the hot cells first. because after that, your success rate starts going down. >> good boy. hey. >> these searches often turn up some type of illegal substance. >> like a marijuana pen or joint, you got some of the marijuana here. the balloons packed with marijuana. a syringe here. the crack pipes so they can smoke crack. >> a common item found during cell searches is pruno, a fermented alcohol drink made from shredded apples and kool-aid. >> i would say it would serve up to five or ten people all depending. some of the inmates actually