People v. MacK’s Empirical Analysis
1959
Citation profile
27 state decisions
How this case has been cited
Cited by 27 later decisions — most recently March 1990 · most notably People v. Gordon (1985), Crowe v. State (1968)
27 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 People v. Horowitz · Pfingsten v. Westenhaver · Enos v. Montoya · 166 Cal. App. 2d 68 - People v. Grace · People v. Johnson
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 27 citing decisions cite the case generally; a passage count includes only decisions quoting that exact language verbatim.
“The qualification of a person to testify as an expert witness is a matter within the sound discretion of the trial court; and its determination, in the absence of a clear abuse, will not be disturbed by a reviewing court. For one to be competent to testify as an expert he must have acquired such special knowledge of the subject matter about which he is to testify, either by study or by practical experience, that he can give the trier of fact assistance and guidance in solving a problem for which his own good judgment and average knowledge is inadequate. Where the witness discloses special knowledge of the subject on which he undertakes to give his opinion as an expert, the question of the degree of his knowledge goes to the weight of his testimony rather than to its admissibility.”
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.