State v. Karr’s Empirical Analysis
1975
Citation profile
37 state decisions
How this case has been cited
Cited by 37 later decisions — most recently March 2025 · most notably State v. Roberts (1980), State v. Nabozny (1978)
37 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 Aguilar v. Texas · Spinelli v. United States · Jones v. United States · United States v. Ventresca · United States v. Harris
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 37 citing decisions cite the case generally; a passage count includes only decisions quoting that exact language verbatim.
“A common and acceptable basis for the informant's information is his personal observation of the facts or events described to the affiant. . . . These observations may be given added weight by the extent of the description or by corroborative police surveillance and information.”
6 later decisions quote this exact passage · from the majority“Recital of some of the underlying circumstances in the affidavit is essential if the magistrate is to perform his detached function and not serve merely as a rubber stamp for the police. However, where these circumstances are detailed, where reason for crediting the source of the information is given, and when a magistrate has found probable cause, the courts should not invalidate the warrant by interpreting the affidavit in a hypertechnical, rather than a common sense, manner.”
2 later decisions quote this exact passage · from the majority““* * * the Fourth Amendment’s commands, like all constitutional requirements, are practical and not abstract. If the teachings of the Court’s cases are to be followed and the constitutional policy served, affidavits for search warrants * * * must be tested and interpreted by magistrates and courts in a eommonsense and realistic fashion. They are normally drafted by nonlawyers in the midst and haste of a criminal investigation. Technical requirements of elaborate specificity once exacted under common law pleadings have no proper place in this area. A grudging or negative attitude by reviewing courts toward warrants will tend to discourage police officers from submitting their evidence to a judicial officer before acting.””
1 later decision quote this exact passage · from the majoritye.g. State v. Nabozny
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.