Case law research
Find the decision that matters. Check it at the official source.
Case law research in Castilho Torres IA aims the search by issue, thesis, tax and court, with period and panel filters, and returns results with references and links to check each decision on the Brazilian court’s portal. It depends on research being enabled for the account and on accessible sources.
By configuration Requires research to be enabled and accessible sources. Results must be checked on the court’s portal.
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The expensive problem
Researching Brazilian case law still means opening several court portals, repeating the same search with different filters and pasting excerpts into a separate document. Time disappears and the doubt remains: did something relevant get missed?
- Hours of repeated searching across portals with different search logic.
- Relevant precedents missed because of one poorly chosen search term.
- Unchecked citations that expose the lawyer and the client.
How it works
- Start from the problem Search by dispute, thesis, tax or legal subject, in plain language.
- Pick the courts Look up precedents from the STF, the STJ and other courts, depending on source access.
- Refine Filter by subject, period, panel and available identifiers.
- Compare See decisions side by side and spot where they converge or diverge.
- Check the source Open the headnote, references and the link to the original decision on the official portal.
What changes for each person
Partner
Gets more complete research and can quickly check every precedent cited.
Lawyer
Trades hours of repeated searching for time spent reading and analyzing the decisions that matter.
In-house counsel
Answers the business with up-to-date precedents and clear references, without commissioning outside research for every question.
Illustrative example
A realistic workflow
An illustrative example, with fictional data, of how the work moves through the platform.
- A firm needs to know how Brazil’s higher courts treat the definition of input for PIS and Cofins credits on logistics expenses.
- The search starts from the issue and applies court (STJ and STF) and period filters.
- Results are grouped by court, showing the panel and the type of precedent.
- The lawyer compares the most relevant decisions and opens each one on the official portal to check the full text.
- The checked precedents go into the matter’s legal-tax analysis, with the link recorded.
Illustrative example. Real results depend on accessible sources and must be checked on the court’s portal.
What depends on configuration
- Research requires the feature to be enabled for the account and accessible sources.
- Coverage depends on the courts and databases available. We do not promise exhaustive coverage of every court.
- Results must be checked on the court’s official portal before being cited.
Objections and common questions
See all questionsWhich courts are covered?
The catalog provides for precedents from the STF, the STJ and other Brazilian courts, depending on source access. The coverage available to your account is confirmed during configuration.
Can the AI invent a decision?
Language models can make mistakes, including in citations. That is why research favors results with references and a link to the official portal, and checking the source is an explicit step in the workflow.
Does it replace the official databases?
No. It organizes and directs the search. The authoritative source is still each court’s official portal.
Does it cover administrative tax tribunals?
That depends on the sources enabled for your account. Talk to the team about the databases your work requires.
Search with direction. Check at the source.
Start the seven-day trial and see how research fits your routine.
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