N.J. Stat. § 9:10-2: Incorrigible, insubordinate and disorderly children and habitual truants

Children under the age of sixteen who shall be habitual truants from school or habitually insubordinate or incorrigible and disorderly during attendance at school and who have been complained against in accordance with subtitle 5 of this title (s. 9:18-1 et seq.) shall be received by the school of detention.

All children under sixteen years of age arrested for any cause, except murder or manslaughter, and school children habitually truant or incorrigible may by order of the juvenile and domestic relations court be held in the detention school until final judgment.