Consider the fact that youth in the juvenile justice system qualify for special education at over three times the rate of those not in the juvenile justice system https://youth.gov/youth-topics/juvenile-justice/youth-involved-juvenile-justice-system#_ftn13.  This means that most children in the juvenile justice system have a disability.   At the same time, schools are partly responsible for introducing special needs children to the justice system by making direct referrals to law enforcement.