. >> it's huge up north in boystown. we haven't even peeked into it. >>> when you work in the jail, you come across like tons of cases. and for about the the last year, anybody in cook county that's been housed here for methamphetamines, there's about a 90% chance that i've interviewed them at one point or another. >> but that meth, it was too strong for me. >> was it really? >> yeah. it was too strong for me. >> you just didn't like the high, huh? >> no. >> in the past decade, chicago's witnessed the rise of a new and powerfully addictive drug -- crystal methamphetamine. meth-related arrests cut across class and race lines, landing suspected users and dealers from all parts of the city and suburbs in cook county jail. it's here that they join thousands of other detainees being held for trial. most have been charged with crimes, but not convicted. >> you guys got a lot of meth out by you? >> criminal intelligence unit investigator mike davis is looking for the right detainees to help him understand the city's meth traffi