I post this for Freeper investigators.
Inquiring minds want to know facts and understand the bigger picture.
Electronic Poll Books for the City of Chicago
In January 2014, the City of Chicago reached an agreement with ES&S to provide more than 2,100 ExpressPoll[26] voter check-in and verification devices to support the city’s 1.6 million registered voters. The electronic poll books were first used in Chicago’s 2014 primary elections.