High-Profile Trial and Evidentiary Precedent

Landmark cases significant chiefly for what their trial or prosecution settled about criminal justice process rather than for the investigative technique that identified the offender: a trial that tested DNA evidence admissibility and procedure under intense media scrutiny, and a multi-jurisdictional prosecution that tested how the justice system handles a juvenile co-offender. Belongs here: a case whose historical importance is principally about the legal or procedural precedent its prosecution set. Does not belong here: a case whose significance is chiefly the forensic technique that identified the offender rather than the trial process itself, grouped under the identification and analysis subcategories above.