153 Ill. 2d 449 - King v. Ryan’s Empirical Analysis
1992
Citation profile
45 state decisions
How this case has been cited
Cited by 45 later decisions — most recently April 2025 · most notably 179 Ill. 2d 367 - Best v. Taylor MacHine Works (1997), 165 Ill. 2d 211 - People v. Mitchell (1995)
45 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 Delaware v. Prouse · New Jersey v. T. L. O. · Skinner v. Railway Labor Executives' Assn. · United States v. Martinez-Fuerte · Griffin v. Wisconsin
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 45 citing decisions cite the case generally; a passage count includes only decisions quoting that exact language verbatim.
“[E]ach operator of a motor vehicle involved in a motor vehicle accident shall submit to and complete a chemical test to determine that person's blood-alcohol level or drug concentration by analysis of the person's blood, breath, or urine if there is probable cause to believe that a death has occurred or will occur as a result of the accident ... [t]he result of a test taken pursuant to this paragraph is admissible at trial if the court, after reviewing all the evidence regardless of whether the evidence was gathered prior to, during, or after the administration of the test, is satisfied that probable cause exists, independent of the test result, to believe that the operator was under the influence of intoxication of liquor or drugs or had an excessive blood alcohol level.”
1 later decision quote this exact passage · from the majoritye.g. McDuff v. State“"If the officer is able to determine probable cause of fault for an accident he may not have witnessed, then it is not overly burdensome to require him to determine probable cause that a driver involved may have been drinking. The officer will often have an opportunity to talk to the drivers and observe their behavior after the accident. Given the relatively low threshold required to show probable cause of intoxication, we do not believe that the State’s interests will be left unprotected.” (King, 153 Ill. 2d at 463-64 .)”
1 later decision quote this exact passage · from the majority“[i]t is clear that the State has a compelling interest in protecting its citizens from the hazards caused by intoxicated drivers ... However, [the statute] is also intended to gather evidence for use in a criminal proceeding. Because [the statute] is designed to further this law enforcement purpose, we do not believe it falls within the special needs exception to the probable cause requirement.”
1 later decision quote this exact passage · from the majoritye.g. McDuff v. State
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.