The Juvenile Court's jurisdiction findings and disposition order adjudging petitioner's four-year-old son a dependent of the juvenile court, removing him from petitioner's care and custody and placing him with the Los Angeles County Department of Children and Family Services for suitable placement, are reversed where: 1) the court erred in proceeding with the contested jurisdiction and disposition hearing in petitioner's absence; and 2) there was, in any event, insufficient evidence that minor was at substantial risk of serious physical harm.