THUGOCRACY: “John Doe” raids punish Wisconsin families for being politically conservative.

John Doe investigations alter typical criminal procedure in two important ways: First, they remove grand juries from the investigative process, replacing the ordinary citizens of a grand jury with a supervising judge. Second, they can include strict secrecy requirements not just on the prosecution but also on the targets of the investigation. In practice, this means that, while the prosecution cannot make public comments about the investigation, it can take public actions indicating criminal suspicion (such as raiding businesses and homes in full view of the community) while preventing the targets of the raids from defending against or even discussing the prosecution’s claims.

Why would Chisholm seek such broad powers to investigate a year-old embezzlement claim with a known suspect? Because the Milwaukee County executive, Scott Walker, had by that time become the leading Republican candidate for governor. District Attorney Chisholm was a Democrat, a very partisan Democrat.

Almost immediately after opening the John Doe investigation, Chisholm used his expansive powers to embarrass Walker, raiding his county-executive offices within a week. As Mr. O’Keefe and the Wisconsin Club for Growth explained in court filings, the investigation then dramatically expanded.