Mensah to 'plead the 5th' if forced to testify in new hearing on deadly shooting If a district attorney "refuses or is unavailable to issue a complaint," Wisconsin statute allows a circuit judge to hold John Doe hearings to determine if there is probable cause to believe a person has committed a crime. Share Updated: 9:30 PM CST Feb 25, 2021 SOURCE: GoFundMe Mensah to 'plead the 5th' if forced to testify in new hearing on deadly shooting If a district attorney "refuses or is unavailable to issue a complaint," Wisconsin statute allows a circuit judge to hold John...