parole violations. >> the convict code is the person that carries themself with respect. he only talks to the man when he has to. he don't sit there and kick it with the man. you don't tell on nobody. >> but these days old time inmates like duran all agree the convict code is changing. >> well, because the different breed of inmate that's coming to the joint now. you got kids coming in here, you know. some are gang bangers that don't know how to carry themselves. and some of them, they just don't give a [ bleep ] about respect or nothing like that. >> we discovered the proliferation of gangs in every prison we profiled and utah is no exception. but nowhere are prison gangs more powerful, dangerous and faster growing than in california, and they've added their own ominous chapters to the convict code. >> you can always spot a guy that's not used to prison, a new inmate. because he'll come out. he'll wander around, he won't go