The Court of Justice of the European Union has backed Spain's amnesty law covering the Catalan independence drive, dismissing the legal challenge brought against the legislation and clearing the way for the amnesty to remain in force.

The Luxembourg-based court, which serves as the EU's highest judicial authority on questions of Union law, handed down the ruling in response to a challenge to the Spanish amnesty law adopted in 2024. The law extends amnesty to those facing legal proceedings over the Catalan independence push, including the events surrounding the 2017 secession attempt.

What the court decided

The Court of Justice found that the Spanish amnesty law does not run counter to EU law. The challenge had argued, in essence, that an amnesty of this scope could sit uneasily with the bloc's legal order — in particular with the principle that member states must not shield individuals from accountability where Union law demands it. The court rejected that line of reasoning and upheld the validity of the Spanish measure.

The decision confirms that the choice of whether to enact an amnesty for conduct connected to a constitutional and political crisis of this kind falls, within the limits of EU law, within the competence of the member state concerned. Spain exercised that competence. The EU's top court has now confirmed that it did so lawfully.

Background

Spain's parliament approved the amnesty law in May 2024. The legislation was a political landmark: it opened the door to closing criminal proceedings and reducing sentences arising from the Catalan independence movement's actions, most prominently the unilateral independence referendum of October 2017 and the events that followed it.

The law did not pass through the Spanish system unchallenged. Judges and parties opposed to the measure raised objections, and questions about its compatibility with EU law reached the Court of Justice in Luxembourg. Those questions centered on whether a national amnesty could coexist with obligations that Spain owes under Union law — including cooperation in criminal matters and the protection of the rule of law.

The Court of Justice has now answered in the affirmative. Its ruling upholds the Spanish law and removes the principal EU-law obstacle to its application.

What this means for practitioners

For lawyers advising clients covered by the amnesty — and for prosecutors and courts applying it — the ruling brings a measure of legal certainty that the law itself had lacked since its adoption. The highest EU judicial body has confirmed the law's compatibility with Union law, which substantially narrows the grounds on which future challenges could be mounted within the EU legal order. Spanish courts applying the amnesty can now do so without the prospect of EU-law annihilation hanging over individual decisions. For practitioners in criminal and EU law, the judgment also serves as a reference point on the boundaries of national amnesty powers within the Union: member states retain the authority to legislate amnesty in politically charged contexts, and the Court of Justice will not lightly displace that authority. Clients whose proceedings fall within the law's scope can be advised that the main EU-law challenge to the measure has failed at the highest level.

Political resonance

The ruling carries weight well beyond the courtroom. The amnesty law was among the most contentious pieces of legislation in recent Spanish political history, and the Catalan independence question remains a live constitutional issue. With the EU's top court now firmly behind the law, the legal battles over the amnesty shift decisively — though not necessarily entirely — away from Luxembourg and Brussels.

The decision stands as the definitive EU-law word on Spain's amnesty for the Catalan independence push.