. >> convicted of armed robbery, bernard jones has been incarcerated for three-and-a-half years and is appealing his case. >> i have to use the bathroom. there ain't no shower curtain, when i'm taking a bath i got a dude walking by. >> temperatures can flare at any moment, officers are required to make hourly security checks. >> everything all right? >> normally look for cracks on the bars, check the bars, check for locks, make sure everything is secured. you look in the cells, making sure the inmate population isn't doing anything they are not supposed to. >> head's up. >> since drugs are frequently smuggled in the jail, specially trained canine units are brought in to find them. corporal perez is the canine handler for miami dade corrections and conducts cell searches with his dog, sandy. >> we found a pound one day, another day three quarters of a pound of marijuana. it coming in from one 10th of a gram up to a pound. >> often the searches turn up other dangerous contraband. >> this is the type of of stuff that i find, sometimes doing a narcotic sniff with sandy, walking to the cell