725 ILCS 5/115-23: Admissibility of cannabis.

In a prosecution for a violation of subsection (a) of Section 4 of the Cannabis Control Act or a municipal ordinance for possession of cannabis that is punished by only a fine, cannabis shall only be admitted into evidence based upon:

(1) a properly administered field test; or

(2) opinion testimony of a peace officer based on the officer's training and experience as qualified by the court.