Trial as an adult is a situation in which a juvenile offender is tried as if he or she were an adult.
Where specific protections exist for juvenile offenders (such as suppression of an offender's name or picture or a closed courtroom where the proceedings are not made public), these protections may be waived.
The first juvenile court in the United States was established in 1899 in Cook County, Illinois. Before this time, it was widely held that children 7 years old and older were capable of criminal intent and were therefore punished as adults. These juvenile courts focused on the offenders instead of the offenses and worked toward a goal of rehabilitation. These courts also arose from a growing belief that instead of being "miniature adults", children and adolescents possess moral and cognitive capabilities that are not quite fully developed.
After a dramatic increase in violent juvenile offenses in the 1990s, a greater number of juveniles were transferred from juvenile court to criminal court for their crimes. This process is controversial, due to concerns about the difference between the cognitive and moral capabilities of juveniles vs. adults and the ease with which juvenile cases can be transferred. Supporters of the abolition of juvenile court, however, argue that prosecuting juvenile offenders in criminal court offers better protection to society and holds juveniles responsible for their actions.
There are several differences between juvenile court and criminal court in the United States. One of the most significant differences is the intent of the two systems; the focus of the juvenile justice system is on rehabilitation and future reintegration, while the goal of the criminal justice system is punishment and deterrence of future crime. In juvenile court rulings, decisions often take psychosocial factors into account along with current offense severity and the youth's offense history. In contrast, in criminal proceedings, the severity of the offense and criminal history weigh most heavily in sentencing outcome. Upon release, those who pass through the juvenile justice system receive parole-like surveillance along with reintegration programs, reflecting the belief that juvenile behavior can be changed. Those released from prison receive surveillance which serves to monitor and report illegal behavior.