In 1915, a Denver murder case became a national story, not because of the identities of the perpetrator or victim but because of a reluctant trial witness: Judge Ben B. Lindsey. A pioneer of Progressive Era juvenile justice, Lindsey was charged with contempt of court for refusing to disclose the details that a twelve-year-old boy shared with him. His refusal led to a six-year-long battle over ideas of confidence and secrecy between a juvenile court judge and a minor. This article analyzes the murder trial and consequent contempt of court case as reflective of a clash over questions of law, justice, and public interest and highlights the role of ordinary people, including children, in debating these ideas. It argues that, as legal actors engaged in a conflict between legal formalism and socialized law, members of the public debated their own perceptions and vernacular understandings of law, justice, and the role of the juvenile court.