A high turnout in specific areas Even where the turnout is within the bounds of possibility, if the figure is wildly different from the turnout elsewhere, it serves as a warning.
Why would one particular area, or one individual polling station, have a 90% turnout, while most other areas register less than 70%?
Something strange is almost certainly going on, especially if the high turnout is an area which favours one particular candidate or party over another.
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