The courts are given a lot of discretion when determining penalty and if you have any prior convictions the penalty can increase substantially. Here's what I could find concerning possession.
(720 ILCS 550/4) (from Ch. 56 1/2, par. 704)
Sec. 4. It is unlawful for any person knowingly to possess cannabis. Any person who violates this section with respect to:
(a) not more than 2.5 grams of any substance
containing cannabis is guilty of a Class C misdemeanor;
(b) more than 2.5 grams but not more than 10 grams of
any substance containing cannabis is guilty of a Class B misdemeanor;
(c) more than 10 grams but not more than 30 grams of
any substance containing cannabis is guilty of a Class A misdemeanor; provided, that if any offense under this subsection (c) is a subsequent offense, the offender shall be guilty of a Class 4 felony;
(d) more than 30 grams but not more than 500 grams of
any substance containing cannabis is guilty of a Class 4 felony; provided that if any offense under this subsection (d) is a subsequent offense, the offender shall be guilty of a Class 3 felony;
(e) more than 500 grams but not more than 2,000 grams
of any substance containing cannabis is guilty of a Class 3 felony;
(f) more than 2,000 grams but not more than 5,000
grams of any substance containing cannabis is guilty of a Class 2 felony;
(g) more than 5,000 grams of any substance containing
cannabis is guilty of a Class 1 felony.
As far as DCFS being contacted, it's anyone's guess. If you are in a custody battle with an ex and they were to discover this arrest, I'm sure they would bring it to the courts attention and to DCFS's attention.
If you were caught smoking it or having it around your child and the police were concerned with the well being of the child or if the child appeared to be neglected, then I imagine they would contact DCFS. But if you weren't with your child and your child does not know you are smoking pot and you don't smoke it when you're child is present, then I doubt anyone will be notified
Penalty:
(720 ILCS 550/10) (from Ch. 56 1/2, par. 710)
Sec. 10. (a) Whenever any person who has not previously been convicted of, or placed on probation or court supervision for, any offense under this Act or any law of the United States or of any State relating to cannabis, or controlled substances as defined in the Illinois Controlled Substances Act, pleads guilty to or is found guilty of violating Sections 4(a), 4(b), 4(c), 5(a), 5(b), 5(c) or 8 of this Act, the court may, without entering a judgment and with the consent of such person, sentence him to probation.
(b) When a person is placed on probation, the court shall enter an order specifying a period of probation of 24 months, and shall defer further proceedings in the case until the conclusion of the period or until the filing of a petition alleging violation of a term or condition of probation.
(c) The conditions of probation shall be that the person: (1) not violate any criminal statute of any jurisdiction; (2) refrain from possession of a firearm or other dangerous weapon; (3) submit to periodic drug testing at a time and in a manner as ordered by the court, but no less than 3 times during the period of the probation, with the cost of the testing to be paid by the probationer; and (4) perform no less than 30 hours of community service, provided community service is available in the jurisdiction and is funded and approved by the county board.
(d) The court may, in addition to other conditions, require that the person:
(1) make a report to and appear in person before or
participate with the court or such courts, person, or social service agency as directed by the court in the order of probation;
(2) pay a fine and costs;
(3) work or pursue a course of study or vocational
training;
(4) undergo medical or psychiatric treatment; or
treatment for drug addiction or alcoholism;
(5) attend or reside in a facility established for
the instruction or residence of defendants on probation;
(6) support his dependents;
(7) refrain from possessing a firearm or other
dangerous weapon;
(7‑5) refrain from having in his or her body the
presence of any illicit drug prohibited by the Cannabis Control Act, the Illinois Controlled Substances Act, or the Methamphetamine Control and Community Protection Act, unless prescribed by a physician, and submit samples of his or her blood or urine or both for tests to determine the presence of any illicit drug;
(e) Upon violation of a term or condition of probation, the court may enter a judgment on its original finding of guilt and proceed as otherwise provided.
(f) Upon fulfillment of the terms and conditions of probation, the court shall discharge such person and dismiss the proceedings against him.
(g) A disposition of probation is considered to be a conviction for the purposes of imposing the conditions of probation and for appeal, however, discharge and dismissal under this Section is not a conviction for purposes of disqualification or disabilities imposed by law upon conviction of a crime (including the additional penalty imposed for subsequent offenses under Section 4(c), 4(d), 5(c) or 5(d) of this Act).
(h) Discharge and dismissal under this Section, Section 410 of the Illinois Controlled Substances Act, or Section 70 of the Methamphetamine Control and Community Protection Act may occur only once with respect to any person.
(i) If a person is convicted of an offense under this Act, the Illinois Controlled Substances Act, or the Methamphetamine Control and Community Protection Act within 5 years subsequent to a discharge and dismissal under this Section, the discharge and dismissal under this Section shall be admissible in the sentencing proceeding for that conviction as a factor in aggravation.
(Source: P.A. 94‑556, eff. 9‑11‑05.)
