Expert extradition lawyer

Over 100 proceedings before Spain's National Court, defending requested persons and representing requesting States.

24-hour emergencies:+34 607 60 49 68

Main States that requested surrenders from the Audiencia Nacional in 2023. Source: FGE Annual Report 2024

+100extradition proceedings before the Audiencia Nacional

Arrest for extradition

The first hours are decisive

The arrested person is brought before an Audiencia Nacional judge within 24 hours. That hearing decides whether they stay in custody or are released, and what is put forward then carries weight throughout the case.

Call now+34 607 60 49 68
  1. 0-24 h

    Hearing before the Central Investigating Court: custody or release with conditions.

  2. First days

    Gather proof of ties to Spain (home, work, family, municipal registration) to seek release.

  3. From the start

    Review the arrest warrant, the applicable treaty and the requesting State's time limits.

He knows extradition from the inside

He has been part of the team that argues the requesting State's position in numerous proceedings before the Audiencia Nacional. That inside knowledge of how an extradition request is built and defended is what he brings to the defence of the requested person: he knows what Spanish courts require and which defects bring a request down.

For the defence

  • Provisional release and alternatives to custody
  • Scrutiny of time limits and of the requesting State's file
  • Double criminality, limitation periods and fair-trial guarantees
  • Asylum and risk of political persecution

For requesting States

  • Preparing and following up extradition requests
  • Liaison with foreign prosecutors and central authorities
  • Appearing at hearings before the Criminal Chamber
  • Requirements of Law 4/1985 and applicable treaties

What happens after an arrest

Passive extradition in Spain follows time limits set by Law 4/1985. Knowing them means acting in time at each stage.

  1. First 24 h

    Arrest and court appearance

    Police bring the person before the Central Investigating Court of the Audiencia Nacional.

  2. First days

    Detention hearing

    With a lawyer and interpreter. The judge decides between provisional detention and release with conditions.

  3. Up to 40 days

    Formal request

    The requesting State must send the extradition request and its supporting documents in time.

  4. Hearing

    Criminal Chamber

    Double criminality, limitation periods, fair-trial guarantees and risk of persecution are argued.

  5. Appeal

    Full Chamber

    A decision granting extradition can be appealed to the full Criminal Chamber.

  6. Final decision

    Council of Ministers

    Even when extradition is granted, the Government may refuse surrender on grounds set out in the law.

Under a European Arrest Warrant (Law 23/2014) time limits are shorter: a decision is due within 60 days, extendable by 30.

Areas of practice

Passive extradition

Defence of the requested person at every stage before the Audiencia Nacional, including applications for release.

European Arrest Warrant

Surrenders to another EU State: short time limits and a closed list of refusal grounds.

INTERPOL red notices

Checking whether a notice exists and deletion requests before the Commission for the Control of INTERPOL's Files (CCF).

Asylum and residence

When a request is politically motivated, asylum and immigration status become part of the defence.

Lawyers in other countries

Acting as local counsel before the Audiencia Nacional, working with the home-country firm.

Coordinate a case

Who will handle your case

Expert extradition lawyer, partner at RSM Spain and lecturer in European Union Law at Complutense University of Madrid.

He has acted in over 100 extradition proceedings before the Audiencia Nacional and appears as counsel for the requesting State in passive extradition proceedings.

From 2015 to 2019 he worked at Mexico's Office of the Attorney General, giving him first-hand knowledge of how extradition requests are prepared and processed by the requesting State.

Having been part of the team representing the requesting State in so many proceedings gives him inside knowledge of how to defend the requested person: where a request is weak (incomplete documents, time limits, double criminality or guarantees) and how the Chamber assesses it.

Juan Carlos Lois Pérez

Career

  1. Present
    Expert extradition lawyer

    Over 100 proceedings before the Audiencia Nacional, defending requested persons and acting for requesting States.

  2. Present
    Partner, RSM Spain

    Leads the International Mobility practice: immigration, asylum and nationality linked to international criminal proceedings.

  3. Teaching
    Lecturer in European Union Law

    Complutense University of Madrid, taught in English.

  4. 2015-2019
    Office of the Attorney General of Mexico

    Worked at the Mexican prosecution service (formerly the PGR) on extradition and international legal cooperation.

  5. Education
    Law degree

    University of Salamanca. Member of the Madrid Bar Association (ICAM), no. 101.158.

  6. Languages
    SpanishEnglish

Margarita Volkova

Career

  1. 10+ years
    Immigration and international mobility

    More than ten years of experience in immigration law and global mobility.

  2. Present
    Tax & Legal Manager, RSM Spain

    International Mobility practice, Madrid office: relocation of professionals and their families to Spain.

  3. Focus
    Permits, visas and documentation

    Residence and work permits, visas and documentation, plus the tax and social security side of relocations.

  4. Languages
    SpanishEnglishRussian
Bar
Madrid Bar Association (ICAM), no. 101.158
Firm
RSM Spain
Languages
Spanish, English, Russian and Chinese
Office
C/ José Ortega y Gasset 22-24, Madrid

Extradition: frequently asked questions

It is the procedure by which one State asks another to surrender a person to stand trial or to serve a sentence. When the person is in Spain and another country requests them, it is called passive extradition. It is governed by Law 4/1985 on Passive Extradition and the applicable treaty, and in Spain it is handled by the Audiencia Nacional.

Three. An initial governmental stage, where the Government decides whether to proceed with the request. A judicial stage before the Audiencia Nacional: arrest, appearance before the Central Investigating Court, hearing before the Criminal Chamber and, where applicable, appeal to the Full Chamber. And a final governmental stage, where the Council of Ministers decides whether to surrender the person once the courts have declared extradition admissible.

The arrested person must be brought before the Central Investigating Court within 24 hours. If the arrest is based on a request for provisional arrest or an INTERPOL notice, the requesting State has the period set by the treaty (40 days if there is no treaty) to submit the formal request and its documents. If it does not arrive in time, the person must be released, although they could be arrested again if the request arrives later.

It depends on the case, the appeals and the governmental stage. Passive extradition usually takes from several months to over a year. A European Arrest Warrant must be decided within 60 days of arrest, extendable by 30, or within 10 days if the person consents to surrender.

Yes, it is possible. The judge may grant provisional release with measures such as surrendering the passport or reporting regularly. Preparing the first hearing well is key.

The main ones are: the acts are not also a crime in Spain or do not reach the minimum penalty (double criminality); the offence or penalty is time-barred; the person has already been tried for the same acts; the offence is political or military; the death penalty or inhuman punishment or treatment may be imposed without guarantees; the request is based on race, religion, nationality or political opinion; the conviction was handed down in absentia without a guarantee of retrial; or the person has been recognised as a refugee. Formal defects in the request and, in some cases, humanitarian reasons or ties to Spain also count.

No. The extradition court does not try the facts or weigh evidence of guilt: that is for the courts of the requesting State. It examines whether the request complies with the law and the treaty and whether any ground for refusal applies. That is why the defence must focus on those grounds, not on an alibi.

There is no absolute bar. Several treaties signed by Spain make the surrender of nationals an option the State may or may not exercise, depending on the case. Within the European Union, a European Arrest Warrant allows their surrender with specific safeguards.

If the person has been recognised as a refugee, extradition must be refused. If they apply for international protection during the procedure, in practice the surrender is suspended until the application is decided. A politically motivated request is also a ground for refusal.

Yes. The Criminal Chamber's decision granting extradition can be appealed (recurso de súplica) to the Full Chamber within three days. An amparo appeal to the Constitutional Court is then available if fundamental rights have been violated. If the courts declare extradition admissible, the Council of Ministers can still refuse surrender; if the courts refuse it, that decision is final.

The European Arrest Warrant is used between EU Member States: it is purely judicial, faster, with a closed list of grounds for refusal and no final Government decision. Extradition applies with all other countries and combines judicial and governmental stages.

No. It is a request to police in other countries to locate and provisionally arrest a person. It can be challenged before the Commission for the Control of INTERPOL's Files.

Call the emergency number as soon as possible. Have ready their full name, date of birth, nationality, where they were arrested and, if you know it, which country is requesting them. At the first appearance before the judge it is decided whether they stay in custody or are released, so the lawyer should be involved from the start.

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