(a) A person commits the offense of obstructing identification when he or she intentionally or knowingly furnishes a false or fictitious name, residence address, or date of birth to a peace officer who has:
         (1) lawfully arrested the person;

Attorney's Note

Under the Illinois Statutes, punishments for crimes depend on the classification. In the case of this section:
ClassPrisonFine
Class A misdemeanorup to 1 yearup to $2,500
For details, see § Ill. Comp. Stat. 730 ILCS 5/5-4.5-55

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         (2) lawfully detained the person; or
         (3) requested the information from a person that the
    
peace officer has good cause to believe is a witness to a criminal offense.
    (b) Sentence. Obstructing identification is a Class A misdemeanor.