What type of crimes do juveniles have to commit in order to be tried as adults?

discussing Juveniles tried as Adults. Paper format should include Introduction, history, current status, characteristics, reduction of offenders, public opinion, personal thoughts, and conclusion. NO PLAGIARISM!!!!!!
What is the age requirement in order to be considered a juvenile? What is the most common age that a juvenile is when they commit a crime? What types of criminal punishments are there for juveniles? etc…….
What is the judicial process for juveniles?
What type of crimes do juveniles have to commit in order to be tried as adults?