Prosecutors are the most powerful people in the American criminal justice system. "Open and Shut," a new podcast from Wisconsin Watch and Wisconsin Public Radio, shines a light on how prosecutors do their jobs — and the danger of allowing that power to go unchecked. Hosted by reporter Phoebe Petrovic, "Open and Shut" is the culmination of nearly three years of investigative reporting. The seven-part series follows two district attorneys in Wisconsin's Fox Valley and their impact on victims, the accused and the justice system.

Episodes 1-3 coming Wednesday, April 20.