Louisiana Case Law Search: Find Louisiana Supreme Court and Court of Appeal Opinions in the One State Where No Single Case Binds Anyone
Ask a Louisiana question the way you would ask a colleague and get back opinions from the Supreme Court and all five Courts of Appeal, with the public domain citation you actually file and the holding in plain language.
Last updated August 2026 · US firms · Research tool, not legal advice
Reading opinions
Finding the authorities that answer your question...
The controlling statute is surfaced alongside the case law so you read the code and the precedents together.
Plain-English answer
Research memo
- Question
- Short answer
- Authorities
Casesearch shows you the sources. Always read the full opinion and verify citations before you rely on them.
The short answer
Louisiana case law search means finding the line of decisions that persuades a Louisiana court, because no single decision binds one. Louisiana is the only American state whose private law is civil law rather than common law, and Civil Code article 1 names only two sources of law: legislation and custom. Judicial decisions are not on that list. Louisiana courts do not apply stare decisis. They apply jurisprudence constante, which the Louisiana Supreme Court described in Doerr v. Mobil Oil Corp. this way: a single case affords sufficient foundation for stare decisis, while a series of adjudicated cases, all in accord, forms the basis for jurisprudence constante. That one difference changes how you research, how you cite, and how confident you are entitled to be.
Two
sources of law under Civil Code article 1: legislation and custom, and case law is neither
A series
of decisions in accord is what jurisprudence constante requires, not one case
July 1, 1994
the date the public domain citation format became mandatory in Louisiana filings
Five judges
must rehear a civil case before a district court judgment is reversed over a dissent
Side by side
The Louisiana court structure and what each decision is worth
Louisiana settles the weight question differently from every other state, because it starts from the Civil Code rather than from precedent. Read the source of law first, then the court, then the form the decision took.
| Court | What it decides | How it is cited | Weight in a Louisiana court |
|---|---|---|---|
| Louisiana Supreme Court | Writs, plus direct appeals when a law or ordinance is held unconstitutional or a death sentence was actually imposed | Public domain cite plus the Southern Reporter, as in 00-0947 (La. 12/19/00), 774 So.2d 119 | Highly persuasive and followed in practice, but not binding precedent in the common law sense |
| Courts of Appeal, formal opinion | Most civil and criminal appeals, in panels of at least three judges across five circuits | Public domain cite plus the Southern Reporter, as in 93-2345 (La. App. 1 Cir. 7/15/94), 660 So.2d 400 | Persuasive, and part of the line of cases that can build jurisprudence constante |
| Courts of Appeal, memorandum opinion | Cases a unanimous panel agrees do not qualify for a formal opinion under URCA Rule 2-16.1 | Same public domain form, often unpublished | Persuasive only, and not published unless the panel votes to publish it |
| Courts of Appeal, summary disposition | Cases where a unanimous panel finds no jurisprudential purpose would be served by a written opinion | Cites the Rule 2-16.2 criterion relied on, as in Rule 2-16.2.A(1) | Resolves the appeal without reasoning you can research or rely on |
| District courts | General trial jurisdiction across 40 judicial districts and Orleans Parish | Not published as precedent | No precedential value |
| Fifth Circuit and the three Louisiana federal districts | Federal questions, and diversity cases applying Louisiana law | F.4th, F.Supp.3d | Persuasive only on a question of Louisiana law, and its Erie guess can be wrong |
Casesearch is a research accelerator, not legal advice. Confirm the current cite and the decision form before you file.
How do I search Louisiana case law?
Start with the statute or the Civil Code article, not with the case. That inversion is the whole difference. In a common law state you hunt for the controlling holding and read the code section afterward if at all. In Louisiana the enacted text is the law, and the decisions are evidence of how courts have read it. A Louisiana search that surfaces five cases and no article number has skipped the authoritative source and gone straight to the persuasive one.
Then look for the line rather than the case. Because a single decision is not binding, one good opinion on your facts is a much weaker finding in Louisiana than it would be in Texas or Mississippi. What you want is a run of decisions applying the same reasoning to the same rule, ideally across more than one circuit and over more than a few years. That is what jurisprudence constante means in practice, and it is why Louisiana research rewards volume of citing references more than most states do.
Describe the issue as a full question with the parties, the posture, and the code article in it. Then check the form of every result before you rely on it, because Louisiana appellate courts issue three different kinds of decision and only one of them contains reasoning you can build an argument on.
Find the code article first
Legislation is the authoritative source, and the decisions interpret it rather than replace it.
Look for a line, not a case
A single decision persuades. A consistent series is what carries real weight.
Check the decision form
Formal opinion, memorandum opinion, and summary disposition are not interchangeable.
Note the circuit
Five circuits read the same article independently, and a split is common rather than exceptional.
Does Louisiana follow stare decisis?
No. Louisiana follows jurisprudence constante instead, and the Louisiana Supreme Court has said so directly. In Doerr v. Mobil Oil Corp., 00-0947 (La. 12/19/00), 774 So.2d 119, the court explained that the Civil Code establishes only two sources of law in Louisiana, legislation and custom, and that judicial decisions are not intended to be an authoritative source of law in the state. It then quoted its own earlier language from Johnson v. St. Paul Mercury Insurance Co.: in Louisiana, courts are not bound by the doctrine of stare decisis, but there is a recognition in this state of the doctrine of jurisprudence constante.
The practical distinction is a counting problem. Doerr put it as plainly as it can be put: a single case affords sufficient foundation for stare decisis, while a series of adjudicated cases, all in accord, forms the basis for jurisprudence constante. When a series of decisions forms what the court called a constant stream of uniform and homogenous rulings having the same reasoning, that line operates with considerable persuasive authority. Until then, you have one court's opinion.
None of this makes Louisiana lawless or unpredictable. Courts follow settled lines routinely, and a rule recognized consistently and long enough outside legislative expression can become part of Louisiana custom under Civil Code article 3 and be enforced as the law of the state. But the burden sits in a different place. In a common law state you argue that a case controls. In Louisiana you argue that the code article means what a consistent body of decisions has said it means, and your opponent is free to argue the court should read the article differently.
Article 1 is the starting point
The sources of law are legislation and custom, and case law is not among them.
One case is not enough
A single decision has never been binding authority in a Louisiana court.
A consistent line is
Uniform rulings with the same reasoning carry considerable persuasive authority.
Courts can change their mind
Doerr itself overruled a two-year-old decision, and said the civilian tradition permits exactly that.
Are Louisiana Court of Appeal decisions binding?
Not in the way the word is used in the other 49 states. A published Louisiana Court of Appeal opinion is persuasive authority. It is not a command to the district courts in its circuit, and it does not bind the other four circuits or later panels of the same circuit. Splits among the circuits are ordinary, and the Louisiana Supreme Court resolves them by granting a writ when it chooses to.
Louisiana does add a structural safeguard that no other state has, and it is worth knowing because it changes what an appellate reversal costs. Article V, section 8(B) of the Louisiana Constitution says that a majority of the judges sitting in a case must concur to render judgment, and then adds a rule for civil cases only: when a judgment of a district court is to be modified or reversed and one judge dissents, the case shall be reargued before a panel of at least five judges before judgment is rendered, and a majority of that larger panel must concur. So a two to one civil reversal cannot stand. It has to be reargued to five.
One more thing separates Louisiana appellate review from federal practice and from most states. Article V, section 10(B) gives the Courts of Appeal appellate jurisdiction over both law and facts in civil cases, and section 5(C) gives the Supreme Court the same reach. Louisiana appellate courts review civil facts under the manifest error standard rather than treating them as settled below. That is why so many Louisiana civil opinions spend pages on the record, and why a factual finding is a live issue on appeal in a way it usually is not elsewhere.
Persuasive across the board
No Louisiana appellate decision binds another Louisiana court in the common law sense.
Circuit splits are normal
Five circuits interpret the same article independently, so check more than your own.
The five-judge rule
A civil reversal over a dissent must be reargued to a panel of at least five judges.
Facts are reviewable
Civil appellate jurisdiction extends to law and facts, not law alone.
How do I cite a Louisiana case?
Louisiana requires a public domain citation with a parallel Southern Reporter cite, and it has required it longer than almost anywhere else. Section 8 of the Louisiana Supreme Court General Administrative Rules governs, and section 8(B) makes the format mandatory for every document filed after July 1, 1994. The rule has been amended twice since, effective January 14, 2013 and again effective May 17, 2022.
For any Supreme Court or Court of Appeal decision issued after December 31, 1993, the public domain form is the case name, the docket number with the letters stripped out, the court abbreviation, and the month, day and year of issue, followed by the parallel Southern Reporter citation. The rule gives its own examples: Smith v. Jones, 93-2345 (La. 7/15/94), 650 So.2d 500, and Smith v. Jones, 93-2345 (La. App. 1 Cir. 7/15/94), 660 So.2d 400. Dropping the letters trips people up. A Supreme Court writ docketed as 00-CC-0947 is cited as 00-0947.
Pinpoints work differently here too. The rule says the page number designated by the court follows the docket number, set off with a comma and the abbreviation p., and may then be followed by a parallel pinpoint to the Southern Reporter: Smith v. Jones, 94-2345, p. 7 (La. 7/15/94), 650 So.2d 500, 504. The p. 7 is the court's own slip page, not the reporter page, so the two numbers in that citation refer to different documents.
Older decisions follow the older forms. Supreme Court opinions between December 31, 1972 and January 1, 1994, and all Court of Appeal opinions from their inclusion in the Southern Reporter in 1928 until January 1, 1994, are cited in Southern Reporter form. Anything earlier goes back to the reporters the rule names by hand, including Louisiana Reports, Louisiana Annual Reports, Robinson, Martin, the Reports of the Louisiana Courts of Appeal, Peltier, Teissier, and McGloin. The official Louisiana Reports were discontinued in 1972.
Strip the letters
The docket number is cited without its CC, CA, KA or similar prefix.
Always give the parallel cite
The public domain form is required with a Southern Reporter citation, not instead of one.
Pinpoint with p.
The court-designated slip page follows the docket number, before the court and date.
Mandatory since July 1, 1994
For filings, the format is a rule requirement rather than a style preference.
Can you cite an unpublished Louisiana opinion?
Louisiana handles publication in an unusual way, and the rule is more permissive than most states. Under the Uniform Rules, Courts of Appeal, an appellate decision takes one of three forms: a full opinion, a concise memorandum opinion, or a summary disposition. Rule 2-16.1.A lists six criteria for a formal opinion, including that the decision establishes a new rule of law or alters an existing one, involves a legal issue of continuing public interest, criticizes or explains existing law, applies an established rule to significantly different facts, or resolves an apparent conflict of authority. If the panel unanimously agrees the case meets none of them, it may issue a concise memorandum opinion instead.
Then comes the part that runs opposite to most states. Rule 2-16.3.A says a formal opinion of a Court of Appeal shall be designated for publication unless a majority of the panel determines otherwise. Publication is the default for formal opinions, and it takes a majority vote to withhold it. Rule 2-16.3.B flips that for the lesser forms: a memorandum opinion or a summary disposition is not designated for publication except by majority vote of the panel.
Rule 2-16.3.C then gives you a lever almost nobody uses. The panel shall reconsider its decision not to publish an opinion on the written request of a party, and also on the request of the trial judge, provided the request and the reasons are filed within the delays for rehearing. The trial judge asking an appellate court to publish is a route that simply does not exist in most states, and it is worth remembering when an unpublished decision resolves a recurring question in your parish.
On citation itself, be careful and check locally. Rule 2-16.3 is captioned Publication and Citation, but its text addresses only publication and sets out no restriction on citing an unpublished decision, unlike the express prohibitions several other states write into their rules. Individual circuits maintain their own local rules, so confirm the practice in the circuit you are filing in before you rely on an unpublished decision in a brief.
Three decision forms
Full opinion, concise memorandum opinion, and summary disposition are governed by different rules.
Publication is the default
A formal opinion is published unless a majority of the panel votes otherwise.
A party can ask for publication
So can the trial judge, in writing, within the delays for rehearing.
Check the circuit local rules
The uniform rule does not restrict citation, but each circuit runs its own local rules.
What are the five Louisiana circuits and why does the numbering confuse people?
Louisiana has five Courts of Appeal, and the Louisiana State Bar Association puts the current bench at 13 judges in the First Circuit in Baton Rouge, nine in the Second Circuit in Shreveport, 12 in the Third Circuit in Lake Charles, 12 in the Fourth Circuit in New Orleans, and eight in the Fifth Circuit in Gretna. Below them sit 40 judicial districts covering one to three parishes each, plus Orleans Parish, across the state's 64 parishes. Above them, the Louisiana Supreme Court is a chief justice and six associate justices elected from six districts to ten-year terms, and Article V, section 3 requires four of the seven to concur before judgment is rendered.
The numbering trap is real and it costs people time. Louisiana has a state Fifth Circuit Court of Appeal sitting in Gretna, and Louisiana also sits within the United States Court of Appeals for the Fifth Circuit. A search result labeled Fifth Circuit can be either one, and they are not remotely the same authority. State appellate decisions are cited La. App. 5 Cir. The federal court is cited 5th Cir. Louisiana also contains three federal districts, the Eastern, Middle and Western Districts of Louisiana.
That matters beyond bookkeeping, because a federal court sitting in diversity is applying Louisiana law without being able to make it. Under Erie Railroad Co. v. Tompkins, 304 U.S. 64 (1938), the federal court predicts what the Louisiana Supreme Court would hold. In a state where the Supreme Court is free to change its mind and where a series of decisions rather than one case carries the weight, that prediction is a genuinely uncertain thing. Treat a Fifth Circuit reading of a Civil Code article as informed and useful, not as settled Louisiana law.
Five state circuits
Baton Rouge, Shreveport, Lake Charles, New Orleans and Gretna, each reading the code independently.
La. App. 5 Cir. is not 5th Cir.
One is a state appellate court in Gretna, the other is a federal court of appeals.
Four of seven
The Louisiana Supreme Court needs four justices to concur before it can render judgment.
Erie is a prediction
Federal readings of Louisiana law forecast the state court rather than bind it.
Where can I find Louisiana case law online?
The official decisions are free. The Louisiana Supreme Court posts its opinions and writ actions as they issue, and each of the five Courts of Appeal publishes its own opinions and its local rules. Google Scholar and CourtListener carry the same decisions with better full-text search. What the free sources will not do is tell you whether the decision you found sits inside a consistent line or stands alone against four circuits, and in Louisiana that is the question that decides how much your case is worth to you.
That gap is why a citator matters more here than the marketing usually suggests. In a stare decisis state, the citator answers a yes or no question: is this case still good law. In Louisiana it answers a counting question: how many courts have followed this reasoning, how recently, and in which circuits. Reading the citing references is not optional research in Louisiana, it is how you find out whether you have jurisprudence constante or a single opinion.
Westlaw and Lexis carry headnotes plus KeyCite and Shepard's, which earn their keep on complex appellate work. For the everyday job of finding the code article, reading the line of decisions that interpret it, and confirming none of them has been overturned, a self-serve tool covers the work at a fraction of an enterprise seat. We compare the whole category in the legal research software guide, and if you are leaving an incumbent, the guide to switching legal research providers walks through contract notice windows and exporting saved research.
Frequently asked
Questions buyers ask about louisiana case law search
Does Louisiana follow stare decisis?
No. Louisiana applies jurisprudence constante instead. Civil Code article 1 names legislation and custom as the only sources of law, and the Louisiana Supreme Court held in Doerr v. Mobil Oil Corp. that judicial decisions are not intended to be an authoritative source of law in the state. A single case is never binding. A series of decisions in accord carries considerable persuasive authority.
How do I search Louisiana case law?
Start from the Civil Code article or the statute, because legislation is the authoritative source and the decisions interpret it. Then look for a consistent line of decisions rather than a single controlling case, and check whether each result is a formal opinion, a memorandum opinion or a summary disposition, because only the first contains reasoning you can rely on.
Are Louisiana Court of Appeal decisions binding?
Not in the common law sense. A Louisiana Court of Appeal opinion is persuasive authority and does not bind district courts, other circuits or later panels. Louisiana does require that a civil case be reargued to a panel of at least five judges when a district court judgment is to be reversed or modified over a dissent, under Article V, section 8(B) of the state constitution.
How do I cite a Louisiana case?
Use the public domain format with a parallel Southern Reporter cite, as required by Section 8 of the Louisiana Supreme Court General Administrative Rules for documents filed after July 1, 1994. The form is the case name, the docket number with letters removed, the court abbreviation and the date, then the reporter cite: Smith v. Jones, 93-2345 (La. App. 1 Cir. 7/15/94), 660 So.2d 400.
Can you cite an unpublished Louisiana opinion?
Uniform Rule 2-16.3 governs publication and does not itself impose a citation restriction, unlike the express prohibitions some states write into their rules. Each circuit keeps its own local rules, so confirm the practice where you are filing. Note that a party or the trial judge may ask the panel to reconsider a decision not to publish, in writing, within the delays for rehearing.
Why is Louisiana law different from other states?
Louisiana private law descends from the French and Spanish civil law tradition rather than English common law, and it is codified in the Louisiana Civil Code. Article 1 makes legislation and custom the sources of law, article 3 lets a long-accepted practice acquire the force of law, and article 4 sends a court to equity when neither legislation nor custom supplies a rule. Criminal procedure and much public law still follow common law patterns.
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Casesearch is a legal research tool, not legal advice. Always read the full opinion and verify citations before relying on them.
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