Dec 01 2010
Retab finds a Glitch
This is our tenth election using the new optical scan voting system. By most accounts, the system is working extremely well.
Illinois law requires that after every election, we retabulate the ballots in 5% of the precincts as selected by the State Board of Elections. In our office, we have extended that retabulation to include a manual hand count of ballots in select races.
The results have been gratifying. In every instance, where we have found a discrepancy between the machine count on election day and the machine count during the retabulation, we have been able to point to particular ballots that were the source the discrepancy, usually a voter marking the ballot with an X instead of filling in the oval.
Such was the case in 3 precincts from this last election. Clearly identifiable ballots had improper markings that caused a discrepancy between the counts. For example, you can see in Mahomet 1 the ballot that was marked with a complete vote for Eric Thorsland for County Board at the same time that the voter darkened the edge of the oval for Stephanie Holderfield. That darkened edge didn’t register on election day, but did in the retabulation, causing an overvote.
However, for the first time, we had two ballots, in Mahomet 5, which alternately counted as overvotes for three offices, as unreadable, or correctly. After identifying the ballots we continued to run them in a variety of orientations and failed to ever get a consistent outcome.
Examination of the ballots, which you can view on our website, doesn’t show us anything odd about them. It was part of the same group of 808 other ballots that we received from our printer for that ballot style. We also tried the ballots in a different tabulator and received the same odd results. It remains a mystery to us.
To date, we’ve reviewed thousands of ballots by hand. In fact, with the large number of discovery recounts we’ve done, the number is probably over 10,000. This is the first time we’ve run across this problem. It’s such a rare thing, with apparently no way to replicate, that I’m not sure I could even venture a guess as to how to prepare for or prevent it in the future.
But it does speak to the value of redundant counts of ballots and mandatory recounts in the event of close races.