740 ILCS 57/15
As used in this Act:
"Illegal drug" means a drug whose distribution is a violation of State law.
"Illegal drug market" means the support system of illegal drug related operations, from production to retail sales, through which an illegal drug reaches the user.
"Illegal drug market target community" is the area described under Section 40.
"Individual drug user" means the individual whose illegal drug use is the basis of an action brought under this Act.
"Level 1 offense" means possession of one-fourth ounce or more, but less than 4 ounces, or distribution of less than one ounce of a specified illegal drug, or possession of one pound or 25 plants or more, but less than 4 pounds or 50 plants, or distribution of less than one pound of marijuana.
"Level 2 offense" means possession of 4 ounces or more, but less than 8 ounces, or distribution of one ounce or more, but less than 2 ounces, of a specified illegal drug, or possession of 4 pounds or more or 50 plants or more, but less than 8 pounds or 75 plants, or distribution of more than one pound, but less than 5 pounds, of marijuana.
"Level 3 offense" means possession of 8 ounces or more, but less than 16 ounces, or distribution of 2 ounces or more, but less than 4 ounces, of a specified illegal drug or possession of 8 pounds or more or 75 plants or more, but less than 16 pounds or 100 plants, or distribution of more than 5 pounds, but less than 10 pounds, of marijuana.
"Level 4 offense" means possession of 16 ounces or more or distribution of 4 ounces or more of a specified illegal drug or possession of 16 pounds or more or 100 plants or more or distribution of 10 pounds or more of marijuana.
"Participate in the illegal drug market" means to distribute, possess with an intent to distribute, commit an act intended to facilitate the marketing or distribution of, or agree to distribute, possess with an intent to distribute, or commit an act intended to facilitate the marketing and distribution of an illegal drug. "Participate in the illegal drug market" does not include the purchase or receipt of an illegal drug for personal use only.
"Person" means an individual, governmental entity, corporation, firm, trust, partnership, or incorporated or unincorporated association, existing under or authorized by the laws of this State, another state, or a foreign country.
"Period of illegal drug use" means, in relation to the individual drug user, the time of the individual's first use of an illegal drug to the accrual of the cause of action. The period of illegal drug use is presumed to commence 2 years before the cause of action accrues unless the defendant proves otherwise by clear and convincing evidence.
"Place of illegal drug activity" means, in relation to the individual drug user, each Illinois Representative District in which the individual possesses or uses an illegal drug or in which the individual resides, attends school, or is employed during the period of the individual's illegal drug use, unless the defendant proves otherwise by clear and convincing evidence.
"Place of participation" means, in relation to a defendant in an action brought under this Act, each Illinois Representative District in which the person participates in the illegal drug market or in which the person resides, attends school, or is employed during the period of the person's participation in the illegal drug market.
"Specified illegal drug" means cocaine, heroin, or methamphetamine and any other drug the distribution of which is a violation of State law.
740 ILCS 57/15