In Illinois, it is unlawful for any person knowingly to manufacture, deliver, or possess with intent to deliver, or manufacture, 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 B misdemeanor;

(b) more than 2.5 grams but not more than 10 grams of any substance containing cannabis is guilty of a Class A misdemeanor;

(c) more than 10 grams but not more than 30 grams of any substance containing cannabis is 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 3 felony for which a fine not to exceed $50,000 may be imposed;

(e) more than 500 grams but not more than 2,000 grams of any substance containing cannabis is guilty of a Class 2 felony for which a fine not to exceed $1000,00 my be imposed;

(f) more than 2,000 grams but not more than 5,000 grams of any substance containing cannabis is guilty of a Class 1 felony for which a fine not to exceed $150,000 may be imposed;

(g) more than 5,000 grams of any substance containing cannabis is guilty of a Class X felony for which a fine not to exceed $200,000 may be imposed.

Production or Possession of Cannabis Sativa Plant

It is unlawful for any person knowingly to produce the cannabis sativa plant or to possess such plants unless production or possession has been authorized pursuant to provisions of Research with Cannabis; Possession, etc. (720 ILCS 550/11).  Any person who violates this Section with respect to production or possession of:

(a) Not more than 5 plants is guilty of a Class A misdemeanor.

(b) More than 5, but not more than 50 plants, is guilty of a Class 4 felony.

(c) More than 20, but not more than 50 plants, is guilty of a Class 3 felony.

(d) More than 50, but not more than 200 plants, is guilty of a Class 2 felony for which a fine not to exceed $100,000 may be imposed and for which liability for the cost of conducting the investigation and eradicating such plants may be assessed.  Compensation for expenses incurred in the enforcement of this provision shall be transmitted to and deposited in the treasurer’s office at the level of government represented by the Illinois law enforcement agency whose officers or employees conducted the investigation or caused the arrest or arrests leading to the prosecution, to be subsequently made available to that law enforcement agency as expendable receipts for use in the enforcement of laws regulating controlled substances and cannabis.  If such seizure was made by a combination of law enforcement personnel representing different levels of government, the court levying the assessment shall determine the allocation of such assessment.  The proceeds of assessment awarded to the State treasury shall be deposited in a special fund as the Drug Traffic Prevention Fund.

(e) More than 200 plants is guilty of a Class 1 felony for which a fine not to exceed $100,000 may be imposed and for which liability for the cost of conducting the investigation and eradicating such plants may be assessed. Compensation for expenses incurred in the enforcement of this provision shall be transmitted to and deposited in the treasurer’s office at the level of government represented by the Illinois law enforcement agency whose officers or employees conducted the investigation or caused the arrest or arrests leading to the prosecution, to be subsequently made available to that law enforcement agency as expendable receipts for use in the enforcement of laws regulating controlled substances and cannabis.  If such seizure was made by a combination of law enforcement personnel representing different levels of government, the court levying the assessment shall determine the allocation of such assessment.  The proceeds of assessment awarded to the the State treasury shall be deposited in a special fund as the Drug Traffic Prevention Fund.