Updating the database of the Illinois Compiled Statutes (ILCS) is an ongoing process.
Recent laws may not yet be included in the ILCS database, but they are found on this site as Public
soon after they become law. For information concerning the relationship between statutes and Public Acts, refer to the
Because the statute database is maintained primarily for legislative drafting purposes,
statutory changes are sometimes included in the statute database before they take effect.
If the source note at the end of a Section of the statutes includes a Public Act that has
not yet taken effect, the version of the law that is currently in effect may have already
been removed from the database and you should refer to that Public Act to see the changes
made to the current law.
(720 ILCS 5/21-1.4)
(a) A person commits a jackrocks violation when he or she knowingly:
(1) sells, gives away, manufactures, purchases, or
(2) places, tosses, or throws a jackrock on public or
(b) As used in this Section, "jackrock" means a caltrop or other object
one or more rounded or sharpened points, which when placed or thrown present at
least one point at such an angle that it is peculiar to and designed for use in
puncturing or damaging vehicle tires. It does not include a device
designed to puncture or damage the tires of a vehicle driven over it in a
direction, if a conspicuous and clearly visible warning is posted at the
device's location, alerting persons to its presence.
(c) This Section does not apply to the possession, transfer, or use of
jackrocks by any law enforcement officer in the course of his or her official
(d) Sentence. A jackrocks violation is a Class A misdemeanor.
(Source: P.A. 97-1108, eff. 1-1-13.)