Derr v. Commonwealth’s Empirical Analysis
1991
Citation profile
2 federal appellate · 145 state decisions
How this case has been cited
Cited by 147 later decisions — most recently March 2018 · most notably Commonwealth v. Hudson (2003), Riner v. Com. (2004)
2 federal appellate · 145 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 Illinois v. Gates · United States v. Leon · Jones v. United States · United States v. Ventresca · Massachusetts v. Sheppard
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 147 citing decisions cite the case generally; a passage count includes only decisions quoting that exact language verbatim.
“(1) [W]here the magistrate was misled by information in the affidavit which the affiant knew was false or should have known was false, (2) the issuing magistrate totally abandoned his judicial role, (3) the warrant was based on an affidavit "so lacking in indicia of probable cause" as to render official belief in its existence unreasonable or (4) where the warrant was so facially deficient that an executing officer could not reasonably have assumed it was valid.”
8 later decisions quote this exact passage · from the majority“is simply to make a practical, common-sense decision whether, given all the circumstances set forth in the affidavit before him, including the “veracity” and “basis of knowledge” of persons supplying hearsay information, there is a fair probability that contraband or evidence of a crime will be found in a particular place. And the duly of a reviewing court is simply to ensure that the magistrate had a “substantial basis for... concluding]” that probable cause existed.”
3 later decisions quote this exact passage · from the majority“[T]he exclusionary rule is designed to deter police misconduct rather than to punish the errors of judges and magistrates. In the ordinary case, an officer cannot be expected to question the magistrate's probable-cause determination or his judgment that the form of the warrant is technically sufficient.”
3 later decisions 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.