Case Search transforms the way attorneys locate authority by merging a legal case search with powerful court opinion lookup and case law research in a single interface. Users can find similar cases across federal case search and state court opinions, leveraging semantic case search that interprets natural language queries. The platform supports jurisdiction case search for every U.S. circuit, a Supreme Court database for SCOTUS opinion search, and even an Indian case law database for comparative work. Advanced filters let practitioners perform case citation search, party name search, judge name lookup, and statute and regulation search without leaving the workflow. Built on a legal research API, the service delivers legal precedent finder results through vector embeddings case law, legal NLP search, and CourtListener API data, while also offering a case verification API to confirm citations. Whether drafting a case brief research or tracing a citing cases finder path, the system provides fast, reliable access to high‑court judgments, high‑court judgments, and multi‑jurisdiction legal search capabilities for comprehensive case timeline research.
Case Search also equips litigators with AI legal research that expands a single query into a set of related terms, enabling thorough court judgment search and case brief research across both statutes and case law. The engine draws on a legal database search that integrates CourtListener API feeds, vector embeddings case law, and a legal NLP search layer to return the most relevant authorities. Users can launch a legal precedent finder to retrieve precedent from the Supreme Court database, locate SCOTUS opinion search results, and explore high‑court judgments from the High Court judgments collection in a single view. The system’s case verification API checks each citation, while the citing cases finder reveals downstream authority and helps construct a case timeline research map. By supporting party name search, judge name lookup, and jurisdiction case search in federal case search and state court opinions, the platform delivers a seamless legal research experience that meets the demands of modern practice without requiring separate solutions or manual data gathering.
How to Search Case Search
You can begin a case search by typing a case number, party name, or citation into the search bar of the Case Search platform. The tool checks your query against federal case search records, state court opinions, and a Supreme Court database at the same time. For related documentation and local filings, you can consult official dui records resources. A semantic case search layer reads plain-language terms and pulls the closest matches from the legal database search index. You can also run a court opinion lookup by judge, date, or topic without changing screens.
Official Search Portal: https://www.courtlistener.com/
Steps to Search
- Open the Case Search interface and pick a search type from the drop-down menu.
- Type a case number, party name, or citation into the main search field.
- Choose a court level such as federal, state, or Supreme Court from the filter list.
- Set a date range to narrow your results to a specific term or calendar year.
- Press Search to see all matching court judgment search records on one page.
- Click any case title to open the full opinion, docket data, and citation list.
Search by Case Number
Entering a full case number returns the exact record in the legal database search results. Numbers such as 21-1234 in federal courts or state docket IDs lead to the matching case file. This method works best when you have the complete number from a citation or prior filing. The system uses vector embeddings case law to match near-number entries when minor typos occur.
Search by Party Name
A party name search locates cases by typing the name of a person or company listed in the case caption. The platform scans plaintiff, defendant, petitioner, and respondent fields across all stored opinions. You can add a jurisdiction filter to limit the search to one state or circuit. This is a core part of any legal precedent finder workflow.
Search by Attorney Name
You can run a judge name lookup or attorney search by typing the lawyer’s full name and bar details. Results show every case where that attorney served as counsel of record. The data draws from court filings indexed in the CourtListener API and linked dockets. Filters let you sort by court level, year, and case outcome.
Search by Filing Date
A filing date search lets you pull cases opened on a specific day, month, or year. The system compares the date you enter with the docket stamp on each record. This helps track recent activity in a matter or find historical rulings. Date searches pair well with party name search for tighter results.
Search by Court or Division
Pick a court or division to limit your case search to a single venue. Options cover U.S. circuit courts, district courts, state supreme courts, and the Supreme Court database. You can also select specific divisions like tax, bankruptcy, or appellate. The case verification API confirms each citation belongs to the chosen court.
Search by Case Type
Choose a case type such as civil, criminal, family, or probate to filter the result list. The system reads the docket header and matches it to the right category. This pairs with statute and regulation search for subject-based lookups. You can stack two or three case types in a single query.
Search by Case Status
Status filters show open, closed, sealed, or pending cases from the live docket feed. Status pulls update as courts post new entries, often within 24 hours. This helps you track active litigation without checking the court site by hand. Status data joins the multi-jurisdiction legal search layer for cross-court tracking.
Case Search Results
Each case search result page shows a clean list of matching opinions and dockets. You see the case caption, court, date, and a short summary on the same row. The view supports both broad scans and deep review of a single record. You can export the list or open any item for full details.
Case Number and Case Title
The case number and case title sit at the top of every result entry. Titles follow Bluebook format, with reporter cites shown in italics. Numbers match the source court’s naming rule, such as CV-2024-1234 or 22-1056. Click the title to open the full case brief research view.
Party Names and Roles
Party names and roles appear below the title in plaintiff/defendant or petitioner/respondent order. Each name links to past and pending cases involving that party. The system flags aliases, trade names, and corporate parents. Role labels match the docket header to avoid confusion.
Attorney Details
Attorney details list counsel of record, bar number, and firm on the result card. The judge name lookup tool also surfaces the bench panel for each case. You can click any attorney to see all their filed cases in the database. Counsel data draws from federal PACER and state e-filing feeds.
Court and Judge
The court and judge line shows the venue, circuit, and panel members. This helps confirm you have the right record in a multi-jurisdiction legal search. You can pivot to all cases from the same judge with one click. Court data stays current through nightly CourtListener API syncs.
Filing Date
Filing date stamps the day the complaint or petition landed at the clerk’s office. The date format follows local court rules, such as MM/DD/YYYY or DD Month YYYY. You can sort results by date to find the oldest or newest match. Date data feeds the case timeline research view for case history.
Case Type
Case type tags each record as civil, criminal, family, probate, or another category. Tags come from the docket header and are checked by the case verification API. You can group results by type to compare similar cases in one view. Type data supports find similar cases logic at the core of the engine.
Case Status
Case status tells you if a matter is open, closed, on appeal, or sealed. Status pulls from the live docket and updates after each new filing. The tool flags stale records when a court site is slow to sync. Status filters pair with party name search for fast triage.
Case Search by Case Type
You can run a case search by case type to focus on one area of law. The platform sorts results into civil, criminal, family, probate, juvenile, misdemeanor, felony, and traffic buckets. Type filters cut noise and speed up the hunt for on-point authority. The system pulls type data from docket headers and court-issued classifications.
| Case Type | Common Courts | Typical Records |
|---|---|---|
| Civil | District, Superior | Contracts, torts, civil rights |
| Criminal | District, Circuit | Indictments, pleas, sentences |
| Family | Family Court | Divorce, custody, support |
| Probate | Probate Court | Wills, estates, guardianships |
| Juvenile | Juvenile Court | Delinquency, dependency |
| Traffic | Municipal, Justice | Moving violations, DUI |
Civil Case Search
A civil case search covers disputes between private parties, such as contract claims, tort suits, and civil rights actions. Records show complaint, answer, motions, and final judgment. You can filter by damages amount, cause of action, or judge. The engine uses vector embeddings case law to surface similar fact patterns.
Criminal Case Search
A criminal case search tracks prosecutions brought by a state or federal authority. Records include charging documents, plea deals, trial transcripts, and sentences. You can search by statute, crime code, or prosecutor. The system joins the case citation search layer to pull citing appeals.
Family Case Search
A family case search covers divorce, custody, adoption, and support matters. Records sit in family or domestic relations courts and often carry access rules. You can search by party, attorney, or filing date. Many family records are sealed, so the tool flags restricted files in results.
Probate Case Search
A probate case search focuses on wills, estates, trusts, and guardianships. Records list the decedent, executor, and beneficiary on the docket. You can search by case number or party name in the High Court judgments feed. The citing cases finder shows downstream will contests and appeals.
Juvenile Case Search
A juvenile case search covers matters where a minor is the respondent or subject. Records sit in juvenile court and follow strict privacy rules. Access often requires a court order or party status. The search tool shows only public entries and seals the rest by default.
Misdemeanor Case Search
A misdemeanor case search covers lower-level criminal charges such as petty theft or simple assault. Records show the charge, plea, and sentence in a short docket. You can search by date, county, or defendant name. The system links to the state court opinions archive for appeals.
Felony Case Search
A felony case search covers serious criminal charges such as robbery, burglary, or homicide. Records include grand jury indictments, motions, and trial outcomes. You can search by statute, judge, or court division. The case verification API checks each citation against reporter data.
Traffic Case Search
A traffic case search covers moving violations, DUIs, and license suspensions. Records sit in traffic or municipal courts and often resolve by fine. You can search by ticket number, defendant, or court date. The tool merges traffic dockets into the multi-jurisdiction legal search index.
Case Search by Person
You can run a case search by person to find matters tied to a specific individual or company. The platform indexes parties across federal case search, state court opinions, and the Supreme Court database. You can search by plaintiff, defendant, petitioner, respondent, or attorney. Each name link opens a profile with full case history.
Search by Plaintiff or Defendant
A plaintiff or defendant search locates cases by the name on the case caption. The engine reads both fields and returns matches across civil and criminal dockets. You can add a jurisdiction filter to scope results to one state. This is the fastest way to pull a person’s litigation history.
Search by Petitioner or Respondent
A petitioner or respondent search covers appellate and supreme court matters. The platform scans the Supreme Court database, circuit courts, and High Court judgments. Additional county documentation and official archives are indexed under criminal court records. You can search by name and filter by writ type, such as certiorari or mandamus. This helps track post-conviction and administrative reviews.
Search by Attorney
An attorney search shows every case where a lawyer served as counsel of record. Records pull from PACER, state e-filing, and the CourtListener API. You can filter by court, year, or case outcome. Attorney profiles show the firm’s full case load and recent wins.
Search by Party Name
A party name search scans all caption fields, including aliases and trade names. The system uses legal NLP search to catch minor spelling variants. You can search by full name, last name only, or business entity. Party profiles link to a citing cases finder for downstream authority.
Handling Common or Similar Names
Common or similar names create noise in any case search. The platform handles this by showing full middle names, dates of birth, and addresses when available. You can sort by court, year, or co-parties to narrow the list. The system flags duplicate profiles and lets you merge them with one click.
Case Search by Date
You can run a case search by date to find matters filed in a specific window. The platform supports single-day, range, recent, and historical date queries. Date filters pair with party, court, and case type filters for tighter results. Date data draws from the live docket feed and updates each night.
Search by Filing Date
A filing date search pulls cases opened on a single day. You enter the date in MM/DD/YYYY or ISO format. The system returns the full docket list for that day at the chosen court. This helps track new matters as they enter the system.
Search by Date Range
A date range search covers a span from a start date to an end date. You can set ranges by day, month, quarter, or year. The tool returns all cases filed in that window, sorted by date. Ranges pair well with case type filters for trend research.
Recently Filed Cases
Recently filed cases appear in a live feed that updates every few hours. The feed covers federal case search and state court opinions across all U.S. jurisdictions. You can filter by court, type, or party. The feed supports alerts for new filings in matters you track.
Historical Case Searches
Historical case searches reach back to early reporter volumes and legacy dockets. The system pulls from scanned records, Westlaw archives, and the Supreme Court database. You can search by citation, year, or judge. Historical data feeds the case timeline research view for long-term matters.
Case Search Results and Filtering
Case search results load on a single page with built-in filters and sort tools. The default view shows the top 25 matches, with more on scroll or page jump. Each result card shows caption, court, date, and a short summary. You can refine the list without re-running the query.
| Filter Type | Field Options | Effect on Results |
|---|---|---|
| Court | Federal, State, Supreme | Limits matches to one venue |
| Year | Single, Range | Limits by filing date |
| Case Type | Civil, Criminal, Family | Limits by docket category |
| Status | Open, Closed, Sealed | Limits by current state |
| Party | Plaintiff, Defendant, Counsel | Limits by name field |
Reviewing Matching Cases
Reviewing matching cases starts with a quick scan of the result list. You look for matching captions, courts, and dates first. The summary line shows the core holding or disposition. You can open the full opinion or jump to the docket for deeper review.
Filtering Search Results
Filtering search results lets you stack court, date, type, and status filters at once. The system applies filters on top of the base query without a new search. Filter chips show your active constraints at the top. You can clear one chip or all with a single click.
- Pick a court from the drop-down to limit by venue
- Set a date range to focus on a term or year
- Add a case type to filter by docket category
- Toggle status to show only open or closed matters
Sorting Case Results
Sorting case results reorders the list by relevance, date, court, or citation count. Default sort is relevance, scored by the semantic case search engine. You can switch to newest or oldest first for date-based review. Citation count sort puts the most-cited cases at the top.
Identifying the Correct Case
Identifying the correct case requires matching the caption, court, and date to your source. The platform shows reporter cites, parallel cites, and docket numbers side by side. You can confirm the match with the case verification API. The system flags possible duplicates for manual review.
Opening Detailed Case Details
Opening detailed case details loads the full record on a new tab. The detail view shows the opinion text, docket history, party list, and citation map. You can read the full holding or jump to a specific section. The citing cases finder shows downstream authority right below the opinion.
Case Search Problems
Case search problems can slow down any research project. The platform tracks common issues such as missing records, noisy results, and stale data. Each problem has a clear path to resolution built into the help menu. You can also reach support through the official portal for deeper help.
- Case not found in the index
- Too many results for a common name
- Wrong details in the docket feed
- Recently filed cases still missing
- Incomplete case data from the court
- Sealed or restricted access
- Delayed record updates
Case Not Found
A case not found error means the docket has not yet reached the index. The platform syncs new filings from PACER and state e-filing every night. A case filed that day may take 24 to 48 hours to appear. You can re-run the search the next day or check the court’s own site.
Too Many Search Results
Too many search results happens with common names such as Smith or Johnson. The engine returns every match across federal and state dockets. You can narrow the list by court, year, or case type. Adding a middle name or co-party often cuts the list to a few records.
Incorrect Search Details
Incorrect search details can point you to the wrong record. Common causes include typos, wrong case types, or wrong courts. The platform shows a “Did you mean” line for misspellings. You can also run a case citation search to confirm the exact reporter cite.
Recently Filed Cases
Recently filed cases may not yet show in the database. Courts vary in how fast they post new dockets. Federal courts usually post within 24 hours; state courts can take longer. The platform marks recent entries with a “new” badge once they sync.
Incomplete Case Details
Incomplete case data happens when a court only posts partial dockets. Older cases often lack full motion lists or exhibits. The platform pulls what is public and flags the missing fields. You can request the full file from the clerk’s office for those matters.
Sealed or Restricted Cases
Sealed or restricted cases are not public, so the search tool hides them by default. Access often requires a court order, party status, or specific role. The platform shows a redacted placeholder so you know the record exists. You can ask the clerk for access through the proper channel.
Delayed Record Updates
Delayed record updates occur when a court site lags or goes offline. The platform syncs from each court on a fixed schedule. A delay of more than 48 hours triggers a sync alert. The case verification API checks each entry against the live docket on demand.
Case Search and Related Court Details
Case search sits next to other court research tools such as lookup, docket, calendar, and records. Each tool serves a clear job in the research workflow. Knowing the difference helps you pick the right view for each task. The table below shows how each tool fits together.
Case Search vs. Case Lookup
Case search scans a broad set of records based on a query. Case lookup pulls a single record by a known ID, such as a docket number. Search is the right tool when you do not know the exact ID. Lookup is faster when you already have the right number.
Case Search vs. Case Details
Case search returns a list of matches for review. Case details show the full record, opinion, and docket for one case. You use search to find the right case, then open the case details view to read it. The two tools work as a pair in any research flow.
Case Search vs. Court Calendar
Case search looks up cases by name, number, or date. Court calendar shows hearings, trials, and motion dates set by the court. Search answers “what cases exist” and calendar answers “what happens next.” You can jump from a search hit to its calendar with one click.
Case Search vs. Court Docket
Case search returns a list of matching cases. Court docket shows every entry filed in one case, in order. Search helps you find the case; docket helps you track it. The platform links each search result to its docket view.
Case Search vs. Court Records
Case search covers opinions and dockets in the legal database. Court records include filings, exhibits, and audio files from the clerk. Search shows what is public and indexed. Records access may need a PACER or state e-filing account for paid files.
Contact and Official Resources
For the Case Search platform, account access, API keys, and developer docs, visit the official portal at https://www.courtlistener.com/. The portal is run by the Free Law Project, a 501(c)(3) non-profit that hosts the public CourtListener API. You can sign up for a free account, read the API terms, and reach the support team through the contact form on the site. The portal also lists the project’s mailing address and official email for records requests and data inquiries.
Frequently Asked Questions
Case Search services let lawyers, scholars, and businesses locate court opinions, statutes, and related documents in seconds. The platform checks federal, state, and supreme court databases at once, then applies a semantic layer that understands plain‑language descriptions. Users can start a search with a case number, party name, citation, or a short description of the legal issue. Results link directly to the official judgment source, so you always see the authentic text. This speed and accuracy reduce research time, lower costs, and improve confidence in citation work.
What is a case search and how does it work?
A case search combines keyword matching with AI‑driven semantic matching. First, the engine scans a 315‑million‑record keyword index for exact terms such as case numbers, party names, or statutes. Next, a semantic layer reads the query in plain language and finds the closest matches from a 2‑million‑record vector index. The system then merges both result sets, ranks them by relevance, and returns links to the official judgment pages. This dual approach lets you find precise citations and related cases even when you only know the issue description.
How can I run a legal case search using a case number or party name?
Enter the case number or party name into the search bar of the Case Search platform. The engine automatically extracts the identifier and queries the full‑text index. Results appear with case titles, courts, decision dates, and direct links to the PDF. You can narrow the list by adding a court filter or a date range. Clicking any result opens the official judgment page, where you can download the full text or view the citation details.
Can I use case search to find court opinions by judge name or citation?
Yes. Type the judge’s full name or the citation string into the query field. The system matches the judge name against its indexed judge list and pulls every opinion that cites the entered reference. Filters let you restrict results to a specific jurisdiction or year. The answer list shows the case title, court, decision date, and a direct link to the source. This method saves time when you need all rulings authored by a particular judge or all cases that cite a landmark decision.
What steps let me retrieve similar cases using AI semantic case search?
Start by opening the case you want to compare, then copy its public URL. Paste that URL into the semantic search field and submit the request. The AI reads the judgment’s facts and issues, then returns a list of cases that share the same legal pattern, even if the wording differs. Each hit includes a similarity score, case number, and a link to the original opinion. You can follow any link to view the full judgment or to add the case to your research folder.
How do I fix missing results when my case search returns no matches?
First, double‑check spelling and remove any extra punctuation. Next, try a broader query that uses generic terms instead of exact phrases. If you still see an empty list, switch from the semantic endpoint to the keyword endpoint, or add a jurisdiction filter to limit the search space. Finally, verify that the database covers the court you are targeting; some lower‑court orders may not be indexed yet. Adjusting these settings usually reveals the desired records.