Immigration & Naturalization Service v. Lopez-Mendoza’s Empirical Analysis
1984
Citation profile
924 federal appellate · 149 district · 394 state decisions
How this case has been cited
Cited by 2,331 later decisions (32 by the Supreme Court) — most recently June 2026 · most notably United States v. Leon (1984), Immigration and Naturalization Service v. Enrico St Cyr (2001)
924 federal appellate · 149 district · 394 state decisions — followed in 41 states
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.
Appellate journey
reviewedthe decision below (from Ninth Circuit Court of Appeals)
Relationships
Applies 8 U.S.C. § 1251 (§ 241 of the Immigration and Nationality Act of 1952 (McCarran-Walter)) · 8 U.S.C. § 1252 (§ 242 of the Immigration and Nationality Act of 1952 (McCarran-Walter)) · 8 U.S.C. § 1302 (§ 262 of the Immigration and Nationality Act of 1952 (McCarran-Walter)) · 8 U.S.C. § 1325 (§ 275 of the Immigration and Nationality Act of 1952 (McCarran-Walter)) · 8 U.S.C. § 1326 (§ 276 of the Immigration and Nationality Act of 1952 (McCarran-Walter)) · 8 U.S.C. § 1361 (§ 291 of the Immigration and Nationality Act of 1952 (McCarran-Walter))
Relies on Wong Sun v. United States · United States v. Leon · Gerstein v. Pugh · Stone v. Powell · United States v. Calandra
Cited together with United States v. Janis · United States v. Calandra · United States v. Leon · Wong Sun v. United States · Terry v. Ohio
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 2,331 citing decisions cite the case generally; a passage count includes only decisions quoting that exact language verbatim.
“intended to provide a streamlined determination of eligibility to remain in this country, nothing more.”
67 later decisions quote this exact passage“egregious violations of Fourth Amendment or other liberties that might transgress notions of fundamental fairness and undermine the probative value of the evidence obtained.”
25 later decisions quote this exact passage · from the majority“various protections that apply in the context of a criminal trial do not apply in a deportation hearing.”
10 later decisions 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.