235 ILCS 5/6-16
If a licensee or officer, associate, member, representative, agent, or employee of the licensee, or a representative, agent, or employee of an express company, common carrier, or contract carrier that carries or transports alcoholic liquor for delivery within this State, is prosecuted under this paragraph of this subsection (a) for selling, giving, or delivering alcoholic liquor to a person under the age of 21 years, the person under 21 years of age who attempted to buy or receive the alcoholic liquor may be prosecuted pursuant to Section 6-20 of this Act, unless the person under 21 years of age was acting under the authority of a law enforcement agency, the Illinois Liquor Control Commission, or a local liquor control commissioner pursuant to a plan or action to investigate, patrol, or conduct any similar enforcement action.
For the purpose of preventing the violation of this Section, any licensee, or his agent or employee, or a representative, agent, or employee of an express company, common carrier, or contract carrier that carries or transports alcoholic liquor for delivery within this State, shall refuse to sell, deliver, or serve alcoholic beverages to any person who is unable to produce adequate written evidence of identity and of the fact that he or she is over the age of 21 years, if requested by the licensee, agent, employee, or representative.
Adequate written evidence of age and identity of the person is a document issued by a federal, state, county, or municipal government, or subdivision or agency thereof, including, but not limited to, a motor vehicle operator's license, a registration certificate issued under the Federal Selective Service Act, or an identification card issued to a member of the Armed Forces. Proof that the defendant-licensee, or his employee or agent, or the representative, agent, or employee of the express company, common carrier, or contract carrier that carries or transports alcoholic liquor for delivery within this State demanded, was shown and reasonably relied upon such written evidence in any transaction forbidden by this Section is an affirmative defense in any criminal prosecution therefor or to any proceedings for the suspension or revocation of any license based thereon. It shall not, however, be an affirmative defense if the agent or employee accepted the written evidence knowing it to be false or fraudulent. If a false or fraudulent Illinois driver's license or Illinois identification card is presented by a person less than 21 years of age to a licensee or the licensee's agent or employee for the purpose of ordering, purchasing, attempting to purchase, or otherwise obtaining or attempting to obtain the serving of any alcoholic beverage, the law enforcement officer or agency investigating the incident shall, upon the conviction of the person who presented the fraudulent license or identification, make a report of the matter to the Secretary of State on a form provided by the Secretary of State.
However, no agent or employee of the licensee or employee of an express company, common carrier, or contract carrier that carries or transports alcoholic liquor for delivery within this State shall be disciplined or discharged for selling or furnishing liquor to a person under 21 years of age if the agent or employee demanded and was shown, before furnishing liquor to a person under 21 years of age, adequate written evidence of age and identity of the person issued by a federal, state, county or municipal government, or subdivision or agency thereof, including but not limited to a motor vehicle operator's license, a registration certificate issued under the Federal Selective Service Act, or an identification card issued to a member of the Armed Forces. This paragraph, however, shall not apply if the agent or employee accepted the written evidence knowing it to be false or fraudulent.
Any person who sells, gives, or furnishes to any person under the age of 21 years any false or fraudulent written, printed, or photostatic evidence of the age and identity of such person or who sells, gives or furnishes to any person under the age of 21 years evidence of age and identification of any other person is guilty of a Class A misdemeanor and the person's sentence shall include, but shall not be limited to, a fine of not less than $500.
Any person under the age of 21 years who presents or offers to any licensee, his agent or employee, any written, printed or photostatic evidence of age and identity that is false, fraudulent, or not actually his or her own for the purpose of ordering, purchasing, attempting to purchase or otherwise procuring or attempting to procure, the serving of any alcoholic beverage, who falsely states in writing that he or she is at least 21 years of age when receiving alcoholic liquor from a representative, agent, or employee of an express company, common carrier, or contract carrier, or who has in his or her possession any false or fraudulent written, printed, or photostatic evidence of age and identity, is guilty of a Class A misdemeanor and the person's sentence shall include, but shall not be limited to, the following: a fine of not less than $500 and at least 25 hours of community service. If possible, any community service shall be performed for an alcohol abuse prevention program.
Any person under the age of 21 years who has any alcoholic beverage in his or her possession on any street or highway or in any public place or in any place open to the public is guilty of a Class A misdemeanor. This Section does not apply to possession by a person under the age of 21 years making a delivery of an alcoholic beverage in pursuance of the order of his or her parent or in pursuance of his or her employment.
For the purposes of this subsection (a-1) where the residence or other property has an owner and a tenant or lessee, the trier of fact may infer that the residence or other property is occupied only by the tenant or lessee.
For the purposes of this subsection (c) where the residence has an owner and a tenant or lessee, the trier of fact may infer that the residence is occupied only by the tenant or lessee. The sentence of any person who violates this subsection (c) shall include, but shall not be limited to, a fine of not less than $500. Where a violation of this subsection (c) directly or indirectly results in great bodily harm or death to any person, the person violating this subsection (c) shall be guilty of a Class 4 felony. Nothing in this subsection (c) shall be construed to prohibit the giving of alcoholic liquor to a person under the age of 21 years in the performance of a religious ceremony or service in observation of a religious holiday.
A person shall not be in violation of this subsection (c) if (A) he or she requests assistance from the police department or other law enforcement agency to either (i) remove any person who refuses to abide by the person's performance of the duties imposed by this subsection (c) or (ii) terminate the activity because the person has been unable to prevent a person under the age of 21 years from consuming alcohol despite having taken all reasonable steps to do so and (B) this assistance is requested before any other person makes a formal complaint to the police department or other law enforcement agency about the activity.
235 ILCS 5/6-16