DGSI & Diário da República in Your AI Client

Portuguese Legal Research AI

From Question to Official Source.

Research Portuguese legislation, official publications, and court decisions from your AI client. Lauyer helps you choose the source, locate the relevant text, and keep verification on DGSI and Diário da República central to the work.

Research Scope

Does changing a fixed-term employment contract require legislation, case law, or both?

Diário da República

Legislation, legal acts, and official publications

DGSI

Judicial decisions published by Portuguese courts

A useful answer may require more than one source. Every original link remains available for verification.

Two Sources, Different Roles

Separate the Published Rule from the Way Courts Apply It

Diário da República and DGSI answer different questions. Keeping their roles distinct prevents a decision from being treated as legislation or a summary as official text.

Official Source Map
diariodarepublica.pt

Diário da República

Legislation & Official Publications

Search acts and official publications when you need to identify the published text, date, type of act, or relevant amendments.

  • Search by terms, act type, series, and date range
  • Retrieve an act from its official identifier
  • Review today’s publications and available act types
dgsi.pt

DGSI

Court Decisions & Case Law

Search decisions when you need to understand how courts approached an issue, which reasoning they used, and which authority deserves full reading.

  • Search ten databases by terms, court, and date range
  • Compare case, date, reporting judge, descriptors, and outcome
  • Open the available text and original DGSI page

Choose Before You Search

Let the Nature of the Question Point to the Source

A professional question can be statutory, case-law based, or mixed. The starting point changes, but verification always ends with the relevant original text.

Starting Question

What kind of authority can answer the verifiable part of this question?

Diário da República

What Was Published?

Start with legislation or an official publication to identify the act, relevant wording, date, and related instruments.

DGSI

How Have Courts Decided?

Start with judicial decisions to find the reasoning, procedural context, and approaches relevant to the issue.

Both Sources

Does the Question Join Rule & Application?

Read the published text, then the decisions interpreting or applying it. Compare dates to avoid mixing versions and contexts.

Research for Real Work

One Foundation for Legal, Compliance, HR & Business Questions

Portugal is the jurisdiction of the sources. The research serves any person or team that needs to work responsibly with Portuguese law.

Legal & Research

Locate acts and decisions for advice, filings, research notes, or academic review while keeping the original authority central to the analysis.

Compliance

Identify relevant publications and find decisions that help explain how particular obligations were applied in specific disputes.

Human Resources

Research employment legislation and judicial decisions to frame policies, procedures, and workplace questions before specialist review.

Business

Research the framework for contracts, operations, and regulatory obligations without confusing legal information with advice on a specific matter.

Verification Desk

Research Ends When the Text, Date & Context Are Confirmed

Lauyer organizes results and can generate summaries for triage. A professional conclusion still depends on the original source, the applicable version, and human review.

Source Verification Checklist

DR · Original Source

Act, number, date, publication, and available text

DGSI · Original Source

Court, case, date, decision, and available text

  1. Open the original link and read the relevant passage in context.
  2. Confirm the date, version, status, and any amendments, repeals, or corrections.
  3. For judicial decisions, check procedural status, possible appeals, and later authority.
  4. Keep source content separate from an AI-generated summary or interpretation.
  5. Submit consequential conclusions to qualified human review.

Summary Limit

An AI summary can omit exceptions, misread the text, or miss later developments. It supports triage and initial understanding, but is not a legal source or a final conclusion.

Search, Retrieval & Summary

Different Actions Use Different Allowances

Searches and retrievals use request units. Summaries use a separate AI-summary allowance. This keeps access to original sources distinct from AI-generated assistance.

Search
A DGSI search uses 3 request units; a Diário da República search uses 2.
Retrieve
Fetching one decision or act uses 1 request unit. Listing today’s publications also uses 1.
Summarize
Each summary uses 1 unit from the AI-summary allowance. Searching and retrieving the source remain separate actions.
Reference
The DGSI court list and Diário da República act-type list do not use units.

Pro & Optional Top-Ups

Pro costs €10 per month and includes 1,000 request units and 40 AI summaries in each UTC calendar month, shared across all tools. You can also buy €10 to €50 in credits without Pro. Each euro adds 100 request units and 4 AI summaries; the lot expires 12 months after payment.

Before Your First Search

Frequently Asked Questions about Portuguese Legal Research

Which sources does Lauyer search?+

Lauyer searches Diário da República for Portuguese legislation and official publications, and DGSI for court decisions. It does not currently provide a dedicated source for European Union directives.

When should I start with Diário da República?+

Start with Diário da República when you need to identify an act, official publication, published wording, date, or related instruments. Then confirm status and relevant amendments in the official text.

When should I start with DGSI?+

Start with DGSI when the question depends on how courts have decided, interpreted, or applied a rule. Select relevant decisions and read the available text and procedural context.

Can I research legislation and case law in the same matter?+

Yes. Many questions require identifying the published rule first and then finding decisions that apply it. The tools remain separate so each search can use terms, filters, and dates suited to its source.

Do I receive the full text of documents?+

Lauyer retrieves the public content made available by the source, including full text when it exists on the official page. Availability and content structure depend on Diário da República or DGSI.

Are results always complete and current?+

No. Every search queries the source when requested, but availability, coverage, and indexing depend on the official source. Your selected terms, filters, and dates also shape the results.

What are AI summaries for?+

They support triage and initial understanding of an act or decision. They can omit exceptions or misread the text. Always confirm material statements at the original source and check later developments.

Can I include confidential information or personal data?+

Avoid professional secrets, unpublished facts, and unnecessary personal data. Search terms go to the source queried. For an AI summary, the relevant legal text also goes to the AI providers described in the AI and data information.

Which AI client do I need?+

You need a Lauyer account and an AI client supporting remote HTTP MCP and OAuth. Authorization takes place in the browser. Confirm these capabilities in your client’s current documentation.

Does Lauyer replace a commercial legal database?+

No. Lauyer provides structured access to the public sources it integrates, but does not provide doctrine, its own editorial annotation, or every feature of a commercial legal database.

Does Lauyer provide legal advice?+

No. Lauyer helps search, retrieve, and summarize sources. Selecting, interpreting, and applying information to a specific matter requires professional assessment and confirmation at the official source.

Why do searches and summaries have separate limits?+

Searching or retrieving a source uses request units. Generating a summary also calls an AI provider and uses a separate allowance. This distinction lets you access sources without automatically turning every request into an AI operation.

Start with the Right Source

Turn a Question into Research You Can Verify

Connect a compatible AI client to Lauyer and research Portuguese legal sources through MCP.

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