The much maligned Halloween candy was "isolated and disposed of immediately," tweeted Dixon police.
"We thank our citizens and encourage them to remain vigilant," Dixon police said, with the hashtags #WorstCandyEver and #ShouldBeIllegal.
The suspicious package was found at a Walmart.
Candy corn is made of sugar, corn syrup, salt dextrose and various yellow and red dyes.
Candy corn was first invented in the 1880s. Wikipedia says that Brach's makes 7 billion pieces of candy corn every year. Brach's is owned by Chicago-based Ferrara Pan.