We’re Asking the Wisconsin Supreme Court to End Warrantless ALPR Searches

Today, EFF joined the ACLU of Wisconsin in filing a petition to the Wisconsin Supreme Court, asking it to rule that the state’s constitution requires a warrant for retrospective searches of ALPR databases used by law enforcement in four cities: Milwaukee, Racine, Kenosha, and Green Bay. We represent a religious organization, the Wisconsin Council of Churches, as well as an individual pastor in Green Bay. As the petition explains: Right now, Automated License Plate Readers (“ALPRs”) are recording the movements of vast numbers of Wisconsin drivers as they seek medical care, attend 12-step recovery meetings, attend religious services, participate in protests, attend political meetings, and engage in many other private, sensitive activities. Law enforcement entities throughout Wisconsin collect, store, share, and aggregate this ALPR data. Then they search it, retrospectively tracking the movements of individuals and entire communities in ways that would have been prohibitively costly, if n