The need to identify the causes of juvenile delinquency and design special methods to correct and treat them in order to prevent the recurrence of crime that is consistent with the development of juvenile personality is one of the most important factors in establishing juvenile justice and its specific laws. Accordingly, the main purpose of this study is to make a comparative study of how Iranian and Scottish laws treat children in order to use the findings of the West, which make extensive use of criminological studies in this field. By studying the judicial system of the two countries, differences in issues such as: referral of cases, security and educational measures, special institutions, age of criminal responsibility, division of punishments, trial courts, the role of police in investigating children, the role The assistant in the trial and ... was identified. It should be noted that the Scottish legislature's attention to criminological findings and its application to the law, as well as their development, is one of the advantages of Scottish law over Iran. By studying the judicial system of the two countries, differences in issues such as: referral of cases, security and educational measures, special institutions, age of criminal responsibility, division of punishments, trial courts, the role of police in investigating children, the role The assistant in the trial and ...