"Suspected alcohol or substance abuse" means that a caregiver or others have reason to believe that a child or youth has illegally consumed alcohol; used or is using cannabis or a controlled substance as defined by the Illinois Controlled Substances Act [720 ILCS 570] without a physician's prescription, or is using or has used inhalants or other substances intended to have an intoxicating or hallucinogenic effect or that could result in clinical dependency. (R 331)