When Coreen Kulvich and Meredith Tanner explore hard drives and Zip disks, they’re hunting more than just bytes of data. They’re looking for convictions. Kulvich, 29, and Tanner, 28, make up the Dakota County Sheriff Department’s small but increasingly vital computer forensics team. Launched in 2003, the unit has played a central role investigating some of the county’s most sensitive criminal cases…
