Prison Transfer in Spain: Who Decides It and How to Request One (2026)

Serving a sentence hundreds of kilometres from your family makes visits, communications and rehabilitation far harder. A prison transfer is the way to fix that situation, but it does not work the way many families assume: the sentencing judge does not choose the prison, the penitentiary administration does. As lawyers specialising in prison transfers in Spain, we explain who decides, which grounds can be argued, how the request is filed and what to do if it is refused or if the transfer harms the inmate.

Who decides a transfer: the prison administration, not the judge

The power is centralised. Article 31 of the Prison Regulations (Royal Decree 190/1996) grants the central prison authority —today the Secretariat General of Penitentiary Institutions (SGIP)— exclusive competence to decide, on an ordinary or extraordinary basis, the classification and destination of inmates in the different facilities. Transfers are ordered by that central authority on a proposal from the Treatment Board of the prison or, where appropriate, from its Director.

Under Article 79 of the General Penitentiary Law (Organic Law 1/1979, LOGP), the management, organisation and inspection of penitentiary institutions belongs to the State prison administration, except in regions with devolved powers: Catalonia and the Basque Country run their own prisons. In practice, a transfer between facilities run by different administrations requires coordination between both, which tends to lengthen the process.

Two important clarifications: the sentencing court does not choose the prison where the sentence is served, and the Prison Supervision Judge (Juez de Vigilancia Penitenciaria, JVP) does not pick the destination either. The JVP acts, as we will see, as the guarantor of the inmate's rights against the administrative decision.

A transfer is an administrative act, not a punishment

An inmate's destination and transfer are administrative acts. That has two major practical consequences. First: a transfer cannot be used as a disguised punishment. It is not listed among disciplinary sanctions and, if used as retaliation, it amounts to a misuse of power that can and should be challenged.

Second: as an administrative act, the decision must respect the legal framework that governs it. And that framework contains a clear mandate: Article 12.1 LOGP provides that the location of prison facilities is set by the administration within the designated territorial areas, ensuring that each area has enough facilities to meet penitentiary needs and to avoid the social uprooting of convicted prisoners. That statutory duty to avoid uprooting is the legal anchor of most transfer requests based on family ties.

Grounds you can argue

In practice, transfers are ordered or requested for a range of reasons, and each one is documented differently:

• Family ties and family reunification: the most frequent ground, resting directly on the Article 12.1 LOGP mandate to avoid the social uprooting of convicted prisoners.
• Treatment reasons: access to a specific programme (drug rehabilitation, respect modules, education or work) not available in the current facility. The Treatment Board is the natural interlocutor here.
• Security: conflicts with other inmates, protection needs or incompatibilities that call for separation.
• Overcrowding and management needs: the administration redistributes the prison population between facilities; an inmate may be moved without ever asking for it.
• Pending court proceedings: having trials or investigative steps in another province may justify a transfer or, more commonly, a one-off court conduction (see below).

One inmate may combine several grounds. The more verifiable facts the request contains, the harder it is for the administration to dismiss it with a generic answer.

How to request a transfer step by step

The ordinary channel is a reasoned petition by the inmate, based on Article 50 LOGP, which grants inmates the right to file petitions and complaints about their penitentiary situation. In practice, the recommended path is this:

• 1. Prepare the request in writing: identify the prison you are asking for, set out the grounds (family ties, treatment, security) and anchor them in Article 12.1 LOGP where family reunification is invoked.
• 2. Attach documentary evidence: certificates of the relatives' registered address, family record book, medical reports, proof of visits made despite the distance. An undocumented petition is far easier to refuse.
• 3. File it at the prison itself: the request is registered and addressed to the central authority (SGIP); the Treatment Board or the Director may take up the proposal, which is the channel through which Article 31 of the Prison Regulations structures transfers.
• 4. Reinforce it from outside: a lawyer can file submissions before the SGIP supplementing the inmate's petition with the documents gathered by the family.

The family does not hold the decision, but it plays an essential evidentiary role: proving family ties is, above all, a task for those outside. Our guide on what the family of a prisoner in Spain can do explains how visits, packages and communications work while the transfer is processed.

What to do if the transfer is refused

A refusal does not close the matter. There are three lines of action, and they are not mutually exclusive:

• Renew the petition on new facts: a relative's worsening health, the birth of a child or the end of pending proceedings are circumstances that justify filing again without waiting indefinitely.
• Complaint before the Prison Supervision Judge: Article 76.1 LOGP entrusts the JVP with safeguarding inmates' rights, and Article 76.2.g LOGP empowers the judge to resolve complaints about prison regime and treatment insofar as they affect fundamental rights or penitentiary rights and benefits. The JVP does not choose the destination prison, but can correct the administration when a transfer —or its refusal— infringes the inmate's rights or interferes with treatment.
• Judicial review before the administrative courts: since these are administrative decisions of the central prison authority, they are also subject to review by the contentious-administrative jurisdiction, especially where the decision lacks sufficient reasoning or amounts to a misuse of power.

A combined, well-documented strategy multiplies the chances of success.

Harmful transfers: distance from family and disguised regressions

The opposite problem also exists: the administration moves the inmate hundreds of kilometres away from the family, or the transfer suspiciously follows a complaint, a report or a conflict with prison staff. In those cases the legal analysis is reversed, but the tools are the same:

• If the transfer causes uprooting, it runs against the Article 12.1 LOGP criterion and the administration must be required to give reinforced reasons for the needs that justify it.
• If it interrupts an ongoing treatment programme, it touches the core of the penitentiary relationship and is typical subject matter for a JVP complaint (Article 76.2.g LOGP).
• If it looks like retaliation, document the timeline and challenge the misuse of power: a transfer is an administrative act, never a sanction.

These situations often come together with harsher regime decisions. If, besides the transfer, a regression in grade or the closed regime has been ordered, read our guide on appealing a first-grade prison classification in Spain, because both fronts must be fought at the same time.

A transfer and a court conduction are not the same thing

Two figures that everyday language mixes up must be kept apart. A transfer changes the inmate's destination prison: the facility where the sentence is served becomes a different one. A conduction, by contrast, is a one-off movement: Article 33.1 of the Prison Regulations provides that inmates leave prison for investigative steps or for trial hearings upon a prior order of the judicial authority. Once the procedural step is over, the inmate returns to his or her facility.

The distinction has consequences: an inmate with a pending trial in another province does not need to request a change of destination; he or she will be conducted when the court so orders.

The role of the prison lawyer

In transfer matters, a lawyer contributes what a handwritten petition rarely has: precise legal reasoning (Articles 12.1 and 50 LOGP, Article 31 of the Prison Regulations), a complete documentary file proving family ties, and a challenge strategy if the answer is negative, choosing between the JVP complaint and judicial review as the case requires. A transfer is rarely an isolated battle: it is coordinated with leave permits —explained in our guide to prison leave permits in Spain—, grade classification and penitentiary benefits.

At Alonso Sala Abogados, with 15+ years of experience in criminal and penitentiary law in Spain, we prepare transfer requests, complaints before the Prison Supervision Judge and appeals against SGIP decisions. If your relative is serving a sentence far from home or has been transferred without justification, call us on +34 91 078 65 74 and we will review the case.