232 Ill. 2d 330 - People v. Van Schoyck’s Empirical Analysis
2009
Citation profile
3 federal appellate · 63 state decisions
How this case has been cited
Cited by 68 later decisions — most recently February 2026 · most notably 236 Ill. 2d 488 - People v. Nunez (2010), 353 Ill. Dec. 247 - People v. Martin (2011)
3 federal appellate · 63 state decisions
Later decisions citing this case, by decade. The current decade is in progress, and our corpus holds fewer opinions from the most recent years, so the latest bars are undercounted — not a real decline.
Relationships
Relies on Klopfer v. State of North Carolina · Toussie v. United States · 36 Ill. 2d 524 - The People v. Fosdick · 204 Ill. 2d 191 - People v. Williams · 223 Ill. 2d 380 - People v. Cordell
Most-quoted passages
The sentences later courts lift from this opinion, ranked by how many decisions quote each — the parts of the opinion doing the work. These counts are smaller than the citation total above because most of the 68 citing decisions cite the case generally; a passage count includes only decisions quoting that exact language verbatim.
“"(a) A person shall not drive or be in actual physical control of any vehicle within this State while: (1) the alcohol concentration in the person's blood or breath is 0.08 or more based on the definition of blood and breath units in Section 11-501.2 [625 ILCS 5/11-501.2]; (2) under the influence of alcohol; (3) under the influence of any intoxicating compound or combination of intoxicating compounds to a degree that renders the person incapable of driving safely; (4) under the influence of any other drug or combination of drugs to a degree that renders the person incapable of safely driving; (5) under the combined influence of alcohol, other drug or drugs, or intoxicating compound or compounds to a degree that renders the person incapable of safely driving; or (6) there is any amount of a drug, substance, or compound in the person's breath, blood, or urine resulting from the unlawful use or consumption of cannabis listed in the Cannabis Control Act [720 ILCS 550/1 et seq. ], a controlled substance listed in the Illinois Controlled Substances Act [720 ILCS 570/100 et seq. ], an intoxicating compound listed in the Use of Intoxicating Compounds Act [720 ILCS 690/0.01 et seq. ], or methamphetamine as listed in the Methamphetamine Control and Community Protection Act [720 ILCS 646/1 et seq. ]. * * * (d) Aggravated driving under the influence of alcohol, other drug or drugs, or intoxicating compound or compounds, or any combination thereof. (1) Every person convicted of committing”
1 later decision quote this exact passage““Under the plain language of [section 11 — 501 of the Illinois Vehicle Code (625 ILCS 5/11 — 501 (West Supp. 2007))], there is only one offense of driving under the influence. [Citation.] Subsection (a) sets forth the elements for the offense and classifies the offense as a Class A misdemeanor. The enhancing factors in subsection (c) do not create a new offense, but rather serve only to enhance the punishment.” People v. Van Schoyck, 232 Ill. 2d 330, 337 , 904 N.E.2d 29, 32-33 (2009).”
1 later decision quote this exact passage“[A]ggravated DUI occurs when an individual commits some form of misdemeanor DUI, in violation of paragraph (a), and other circumstances are present. The legislature added aggravating factors that change[ ] the misdemeanor DUI to a Class 4 felony.”
1 later decision quote this exact passage
How this case has been treated — in progress
Whether each later court followed, distinguished, criticized, or overruled this decision. The treatment classification (task #35) runs highest-cited cases first and lights up here as it reaches this one.