TaiLexi AI U.S. Case Law

Search tips

Type the way you already search on Westlaw or Lexis. If your search contains a connector, it runs as Terms & Connectors; otherwise it runs as plain English. A citation jumps straight to the case, and a case name (X v. Y) searches case names.

Terms & Connectors

TypeFindsExample
& AND or a spaceBoth termswarrant & automobile
OREither termphysician OR doctor
"…"Exact phrase"clearly established"
/s w/sIn the same sentence (within about 20 words)negligen! /s physician
/p w/pIn the same paragraph (within about 60 words)"qualified immunity" /p "clearly established"
/n w/nWithin n words, either ordersearch /5 seiz!
+n pre/n +s +pFirst term precedes the second within n words"res" +2 judicata
% BUT NOT AND NOTExclude what follows"strict liability" % product
not w/nFirst term, but not within n words of the seconddamages not w/5 punitive
!Root expander: any endingnegligen! → negligent, negligence…
* ?One characterwom*n → woman, women
( )Group terms(car OR automobile OR vehicle) /s search!

Order of operations follows Westlaw and Lexis: OR first, then proximity connectors, then &, then BUT NOT. So negligen! /s physician OR doctor means negligen! in the same sentence as physician or doctor.

Plurals and possessives are found automatically. Sentence and paragraph boundaries are approximated by word distance (20 and 60 words), so /s and /p can occasionally reach across a short sentence break.

Field searches

FieldWestlaw / Lexis styleExample
Case nameti( ) name( )ti(miranda & arizona)
Judges on the panelju( ) judges( )ju(sotomayor)
Opinion authorwrittenby( ) au( )writtenby(scalia) & "original meaning"
Syllabus / headnotessy( ) he( )sy("equal protection")
Docket numberdocket( )docket(70-18)
Court namecourt( )court("ninth circuit") & "fair use"

Plain English

Ask a question or list concepts: when may police search a car without a warrant. Question words are dropped, every concept must appear (most of them, for longer searches), and cases that use your words as a phrase rank higher. Results lean toward opinions that later courts cite often.

Citations and case names

Type a citation such as 410 U.S. 113, 347 U.S. 483, or 556 U.S. 662, 678 to go straight to the case (a pin cite scrolls to that page). Lowercase or missing periods (410 us 113) and short forms (410 U.S. at 153) work too. Type a name like Brown v. Board of Education to search case names, most-cited first.

Reading a case

Sources & methods →

Keyboard shortcuts

/Focus the search box
j kNext / previous result
EnterOpen the selected result
n pNext / previous search term in a case
cCopy the citation of the current case
+ −Larger / smaller reading text
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