People of Michigan v. Joshun Edwards

Summary

The Michigan Supreme Court held that the prosecution violated the defendants’ constitutional disclosure rights by withholding the transcript of its principal witness’s first police interview. The transcript was favorable and material because it supplied substantial impeachment evidence, undermined the prosecution’s other evidence, supported the defense theory, and raised concerns about the investigation’s thoroughness and good faith. The defendants showed good cause and actual prejudice under the post-conviction-relief rule and were entitled to new trials.