pretty much, yeah. it is like that. i don't care what they tell you. it is like that. okay? it is hardcore like that. >> corcoran's general population inmates are split into three main yards. the level one yard consists mainly of low-security inmates, many of whom are in on parole violations. "b" yard holds the medium-security level three inmates. and "a" yard is home to the maximum security level four inmates who are serving time for more violent crimes. but first they have to get past sergeant rangel. >> i'm currently assigned as a receiving and release sergeant here at corcoran state prison. i'm responsible for the intake of the inmates and the outgoing, departure inmates, paroling, going to court, transferring to another institution. we'll get them processed, i.d.'d, medical attention, a little orientation speech. what's your number?