218 Ill. 2d 125 - People v. Johnson’s Empirical Analysis
2006
Citation profile
142 state decisions
How this case has been cited
Cited by 146 later decisions — most recently February 2026 · most notably 224 Ill. 2d 312 - People v. Perry (2007), 234 Ill. 2d 173 - People v. Glasper (2009)
142 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 Strickland v. Washington · Chapman v. State of California · United States v. Olano · 122 Ill. 2d 176 - People v. Enoch · 104 Ill. 2d 504 - People v. Albanese
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 146 citing decisions cite the case generally; a passage count includes only decisions quoting that exact language verbatim.
“Clearly, there can be no plain error if there is no error”
5 later decisions quote this exact passage · from the majority“the plain error doctrine allows a reviewing court to consider an unpreserved error when (1) a clear or obvious error occurs and the evidence is so closely balanced that the error alone threaten[s] to tip the scales of justice against the defendant, regardless of the seriousness of the error, or (2) a clear or obvious error occurs and that error is so serious that it affected the fairness of the defendant's trial and challenged the integrity of the judicial process, regardless of the closeness of the evidence.”
2 later decisions quote this exact passage · from the majority“since an attorney's performance is ineffective only if it falls below an objective standard of reasonableness [citation], counsel cannot be deficient if he fails to object to remarks which are not improper.”
1 later decision quote this exact passage · from the majority
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.