Ill. Admin. Code tit. 20, § 2501.130
a) Committed youth shall be subject to testing for unauthorized use of drugs and alcohol on a random, routine, or reasonable suspicion basis. Such testing shall not be used to harass, intimidate or unduly embarrass committed youth.
2) Alcohol shall mean any substance ingested which contains alcohol, including beer, wine, liquor, liqueur, cough medicine, etc.
d) Testing shall be conducted as ordered by the Duty Administrative Officer or above due to reasonable suspicion when objective facts and circumstances warrant a rational inference that a person is using or is under the influence of drugs or alcohol. Reasonable suspicion may be based, among other matters, upon: