. >> to battle overcrowding, officer cavagnolo's donner unit houses inmates meant to be segregated fromulation within feet of mainline inmates. >> we have in this unit, we have 2 1/2 tiers of administrative segregation, and the bottom half is a reception center. it makes it really difficult for us, because inmates on the bottom half of the unit, they have access through a lot of different parts of the institution, and then our challenge we have in administrative segregation is the inmates make fish lines and they'll tie a little weight to it and pass it down and pass kites or weapons, so it's a constant battle. just controlling contraband and keep an eye on these inmates, keep them in order. you never know what you're going to get in here. you have to be prepared. just last week we had an inmate slashed from the second tier reception center and we just came off of lockdown from that. yesterday we had an inmate cut his wrist coming off the fifth tier. like i said, we're five tiers high. we do not have suicide bars in here. one of the inmates came out in handcuffs and we're in an altercat