During Hursti's first memory card hack on May 26, 2005, he altered the program that creates the "poll tapes", or voting machine results reports. However, this hack would be detected if the supervisor of elections compared the poll tape results with the GEMS central tally report. The GEMS tally report can be hacked to match, as demonstrated during two earlier Black Box Voting projects in Leon County with Herbert Thompson. Thompson successfully manipulated the GEMS tally program using a Visual Basic script.