Overview
Spain is an EU member state and part of the European Arrest Warrant system. The legal basis is Framework Decision 2002/584/JHA and Sections 78 ff. IRG. Spain is one of the founding states of the EAW system (transposed as early as 2003) and a well-established partner in extradition practice.
Responsible for executing incoming EAWs in Spain is the Audiencia Nacional in Madrid — a central court with nationwide special jurisdiction over EAWs, mutual legal assistance, terrorism and organized crime. This centralization leads to a high level of expertise and swift proceedings.
Frequent case constellations are drug offenses, white-collar criminal matters, sexual offenses, as well as historical cases connected with ETA / the Basque autonomy movement (still relevant in practice for legacy cases).
Legal basis
Extradition to Spain is governed primarily by Framework Decision 2002/584/JHA on the European Arrest Warrant, transposed in the Eighth Part of the IRG (Sections 78 ff. IRG). On the Spanish side, Law 23/2014 on the mutual recognition of criminal decisions in the European Union (Articles 34 et seq.) has applied since December 2014, completely replacing the former EAW Law No. 3/2003.
On the German side, the Higher Regional Courts are competent in the admissibility proceedings (Section 29 IRG); the granting decision is made by the General Public Prosecutor's Office (Section 79(2) IRG). On the Spanish side, the Audiencia Nacional decides centrally on the execution of incoming EAWs; EAWs, by contrast, are issued in a decentralized manner by the court handling the respective criminal case (Article 35 of Ley 23/2014).
For German citizens, Article 16(2) of the Basic Law in conjunction with Section 80 IRG applies: extradition only where there is a substantial connection abroad and an assurance of return.
Country-specific issues in Spain
Incommunicado detention: The Spanish Code of Criminal Procedure traditionally recognizes, in terrorism and organized-crime cases, a form of detention without contact to freely chosen lawyers (detención incomunicada). The ECtHR has repeatedly criticized this practice (Etxebarria Caballero v. Spain, 74016/12, 7 Oct 2014). The Spanish reform (Law 13/2015) has considerably restricted incommunicado detention; it is now admissible only in exceptional cases and for a limited period. Where its application is specifically feared, assurances regarding contact and defense rights must be obtained.
Detention conditions: By European comparison, Spanish prisons are regarded as average to good. Structural deficiencies in the sense of a pilot judgment have not been established; individual facilities show overcrowding (CPT reports).
Judgments in absentia: Under Section 83 IRG and Framework Decision 2009/299/JHA, where there has been no summons, an assurance of a retrial is required.
2024 Amnesty Law: The Spanish Amnesty Law (Ley Orgánica 1/2024) relating to the Catalan independence question has isolated relevance to extradition; its scope of application is, however, narrowly limited and rarely applicable in German proceedings.
Detention conditions and the human-rights review
Detention conditions in Spanish prisons generally meet the European standard. CPT reports (the 2021 report on the 2020 periodic visit; most recently the July 2025 report on the ad hoc visit to Catalonia in late 2024) note specific and in part significant criticism (including allegations of ill-treatment in prisons and mechanical restraint), but do not establish systemic deficiencies within the meaning of the Aranyosi case law.
Individual high-security accommodation remains a critical issue, as did incommunicado detention under the Spanish Code of Criminal Procedure in the past. The 2015 reform has considerably restricted incommunicado detention; it is now admissible only under narrow conditions and for a limited period.
Under German extradition case law, Spain cases are regularly admissible; human-rights objections have only individual-case significance in practice.
Lines of defense
The defense in Spain EAW cases follows the standard pattern for EU member states:
- Section 80 IRG (extradition of Germans): review of the connection to the place of the offense and the assurance of return.
- Section 83 IRG (judgments in absentia): assurance of a retrial where there has been no summons.
- Section 81 IRG (dual criminality): substantive review outside the list of offenses.
- Incommunicado detention: where its application is specifically threatened (terrorism or organized-crime context), an assurance of contact with a lawyer of one's choice and of a time limit. Draw on the ECtHR case law (Etxebarria Caballero).
- Rule of specialty (Section 83h IRG): limitation of prosecution to the offenses granted.
- Detention conditions (Aranyosi/Căldăraru): an individual review only where there is substantiated submission regarding a concrete facility.
- Simplified procedure (Section 41 IRG): where the facts are clear.
- Urgent application to the OLG and constitutional complaint: where legal objections remain.
Legal representation in Spanish extradition proceedings
An extradition case is a specialized mutual-legal-assistance procedure that goes beyond classic criminal defense. Engaging a defense lawyer specialized in extradition law at an early stage is regularly decisive — not only after the formal extradition arrest warrant has been issued, but already from the moment of an arrest based on an Interpol notice, an SIS alert or a European Arrest Warrant.
As a Certified Specialist in Criminal Law with a focus on extradition law, I advise and represent affected persons nationwide before the competent Higher Regional Courts and in constitutional complaint proceedings before the Federal Constitutional Court.