Common tally mistakes
The recurring errors that decide petitions - more votes than voters, duplicate serials, bad arithmetic - and how to catch each.
Most disputed results do not turn on dramatic fraud. They turn on ordinary mistakes - the kind that creep into any process where thousands of forms are filled by hand, at speed, late at night. The good news: the common ones are well known, and every one of them is catchable. Here they are.
More votes than registered voters
A station cannot record more votes cast than it had registered voters. When it does, something is wrong - a miscount, a transposed figure, or a form filled in error. It is the single easiest check to run and one of the most revealing. Every station's total should sit at or below its registration.
A form serial that appears twice
Each results form carries an official serial number, and each belongs to exactly one station. If the same serial turns up for two different stations, one of them is wrong - a genuine error, or a form where it does not belong. Watching for duplicate serials catches a class of problem that raw vote numbers never will.
Arithmetic that does not add up
The numbers on a single form have to reconcile: the candidate votes plus the rejected ballots should equal the total ballots cast, and that total should match the turnout. When the internal arithmetic of a form does not close, the form is unreliable - no matter how confident the figures look.
Transposition and typing errors
A 1,204 recorded as 1,240. Two candidates' totals swapped. A digit dropped. These are honest slips, but they move numbers, and at scale they add up. Capturing the photograph of the form - not just the typed figure - is what lets you catch and correct them against the source.
Turnout that does not fit its neighbours
A single station reporting turnout wildly out of line with every other station around it is not proof of anything - but it is a question worth asking. Outliers are where you look first, because they are where both errors and problems tend to show.
Missing forms
The quietest mistake is the one you never see: a station that simply never reports. A blind spot is not a zero - it is an unknown, and unknowns are where a result can be decided without you noticing. Coverage tracking turns "we did not hear from them" from an accident into a flag.
Catching them is a system, not a squint
No one catches these by staring at a spreadsheet at 2 a.m. You catch them by running the checks automatically, at the moment each form is captured, so the exceptions raise their hand instead of hiding in the pile. That is the whole point of a command centre.
Election Edge runs these checks on every submission as it arrives - votes against registration, duplicate serials, form arithmetic, turnout outliers, and coverage gaps - and links each flag back to the photographed form. The mistakes are common; missing them does not have to be.
Election Edge is the operating system for modern campaign operations - parallel vote tabulation, agents, command centre, and evidence, in one place. Request access.