Requires children under the age of seventeen to be prosecuted for most criminal offenses in juvenile courts unless the child is certified as an adult

HB 3124 requires most criminal cases involving children under 17 to be handled in juvenile court instead of adult court. The bill only allows transferring a case to adult court if a judge certifies the child as an adult, typically for serious offenses. This directly affects minors accused of crimes in Missouri, keeping them in the juvenile system unless certification occurs. The bill modifies existing juvenile justice procedures to strengthen this default jurisdiction, without specifying certification criteria.