>> on any given day, there are more than 9,000 male and female inmates incarcerated at maricopa. most have not been convicted of the crimes with which they've been charged, but are on or are awaiting trial. they're housed in six different facilities. >> i would describe maricopa county jail as, like, no other jail i've ever seen before. first of all, the sheer volume of it is staggering. so just walking in there and figuring out who's important, how the systems work, even how you get through the doors is a challenge. >> go to the west gates, see officer von reagan. >> the maricopa county jail has been the subject of more media attention than probably any other jail in america. in recent years it's been due to the county's policies toward illegal immigrants. before that, much of the coverage centered on its