“This study describes detailed trauma histories, mental health problems, and associated risk factors (i.e., academic problems, substance/alcohol use, and concurrent child welfare involvement) among adolescents with recent involvement in the juvenile justice system” (p. 20276). Results are presented for: prevalence rates for trauma types, mental health problems, and associated risk factors; and the age at which youth first experience trauma and co-occurring trauma (multiple trauma types occurring within a single year).