Constitutional law, fully accessible.
Effortlessly search the case law of the Belgian Constitutional Court, the European Court of Human Rights and the Court of Justice of the European Union.

Ex Ante accelerates your legal research.
Our search engine was specifically developed to address the challenges of experts in constitutional law.
Semantic search
Search by meaning, not just keywords. Our search engine understands legal context and finds relevant results you would otherwise miss.
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Consult constitutional case law
Access to judgments and decisions from all relevant courts, centralised on a single platform.
- Constitutional Court
- Court of Justice
- ECHR
Advanced filters
Filter by the Court's assessment, area of law, date and more to quickly find the right sources.
- Increased relevance
- AI-enhanced
- User-friendly
Available sources
Ex Ante provides comprehensive access to all relevant sources for constitutional law research.
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Sources are continuously updated and expanded.
Typical use cases
Discover how constitutional law practitioners use Ex Ante daily to work more efficiently.
Easily analyze recent case law
Stay up to date with the latest developments in the case law of the Belgian Constitutional Court.
“What is the recent approach of the Belgian Constitutional Court regarding the principle of equality in education?”
Quickly find the decisions most relevant to you
No need to try countless keyword variations to find relevant documents. Save hours of research work thanks to our semantic search engine.
“How is the standstill principle applied to the right to work?”
Substantiate your legal arguments
Strengthen your advice, petitions, and submissions with relevant case law and precedents.
“Can the principle of legality in criminal matters be applied to administrative sanctions?”
What legal experts say
“As a lawyer, accuracy is essential. Ex Ante delivers source-based results without hallucinations, exactly what I need.”

Johanna-Charlotte Devogelaere
Lawyer
GD&A Attorneys
“The semantic search function makes a real difference. It allows you to find case law based on legal context, not just keywords.”

Lion Janssens
Lawyer
ARCAS Law
“Complex cases often involve hundreds of potentially relevant sources. Ex Ante immediately highlights the most relevant passages, saving a tremendous amount of time.”
Koen Daniëls
Senior Associate
CDRO Consulting
For Whom?
Ex Ante is designed for professionals who deal with constitutional law issues on a daily basis.
Lawyers
Lawyers specialised in constitutional law
Government lawyers
Legal departments dealing with constitutional issues
Interest groups
In-house experts in constitutional law
Academics
Researchers, students and lecturers in constitutional law
Ready to accelerate your constitutional law research?
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