When someone enters prison to serve a sentence, their relationship with the judicial system does not end. The conviction marks the conclusion of the criminal process, but it initiates a new phase — the execution of the sentence — in which there exists a judicial body specifically designed to ensure that the inmate's rights are respected, that the serving of the sentence complies with the law, and that the prison administration does not act in an arbitrary or abusive manner. That body is the Penitentiary Surveillance Judge.
The figure of the Penitentiary Surveillance Judge — hereinafter PSJ — is one of the most singular in the Spanish justice system. They do not investigate crimes, do not hold oral trials, and do not hand down convictions. Their function is quieter but equally fundamental: they supervise that the sentence is served humanely and in compliance with the convicted person's fundamental rights. In common parlance, they are known as "the prison judge."
In this article we explain who the Penitentiary Surveillance Judge is, what their specific powers are, how an inmate can approach them, what appeals are available against their decisions, and why their role is so important for those serving sentences in Spain.
Origin and Rationale of the Penitentiary Surveillance Judge
The PSJ was created by the General Organic Prison Law of 1979 — the first organic law of Spanish democracy — in response to a longstanding demand of penitentiary rights protection: that the execution of custodial sentences should not be left entirely in the hands of the administration, without any external judicial oversight.
Before their creation, the life of a prisoner within the penitentiary system was subject almost exclusively to the discretion of the prison administration itself. There was no specific judicial body to which an inmate could turn to assert their rights or to challenge decisions they considered unlawful. The PSJ was created to fill that void, establishing permanent judicial oversight over the execution of sentences — an essential component of the Rule of Law.
Its constitutional foundation rests on Article 117 of the Constitution — which assigns to the judiciary the function of executing judgments — and on Article 25.2, which requires that sentences be oriented towards reintegration and which obliges the creation of the mechanisms necessary to ensure that orientation is not an empty declaration. The PSJ is the guarantor that this orientation translates into concrete and verifiable actions.
The Powers of the Penitentiary Surveillance Judge
The PSJ's powers are broad and cover virtually every significant aspect of an inmate's life within the penitentiary system. The General Organic Prison Law and the Prison Regulations distribute them across several categories:
Approval of Penitentiary Benefits and Release Permits
One of the most visible functions of the PSJ is the approval — or denial — of the penitentiary benefits that the prison administration proposes for inmates. Although the Treatment Board of the penitentiary establishment is the body that proposes these measures, many of them require judicial approval before they can be implemented.
The most significant are release permits, particularly those lasting more than two days for inmates classified at the second degree. The Treatment Board proposes the permit, but the PSJ may approve it, deny it, or make it conditional on certain requirements. Their assessment must be based on factors such as the inmate's record within the facility, reports from penitentiary specialists, the risk of non-return, and the viability of the plan for preparation for release.
The PSJ is also responsible for approving conditional release — except where it is processed as an administrative procedure in specific cases —, granting permanent reviewable imprisonment where the legal requirements are met, and approving individual pardons in the cases provided for by law.
Resolution of Inmates' Complaints and Appeals
Any inmate who considers that a decision by the prison administration is unlawful or violates their rights may lodge a complaint or an appeal with the PSJ. This is one of the most important pillars of the PSJ's function: acting as a guarantor of the individual rights of the prisoner against potentially arbitrary or unlawful conduct by the administration.
The most frequent complaints that reach the PSJ concern:
- Classification at a more restrictive penitentiary degree than the inmate considers justified.
- Denial of release permits without sufficient reasoning.
- Living conditions within the facility: overcrowding, lack of healthcare, inadequate hygiene conditions.
- Restrictions on communications with family members and lawyers.
- Transfers to facilities far from the family home that hinder the maintenance of family ties.
- Any other administrative action that the inmate considers unlawful or abusive.
The PSJ examines the complaint or appeal, may request reports from the penitentiary establishment, may hold hearings with the inmate, and, if they consider that the administration's conduct has been unlawful or has violated the inmate's rights, may annul it, modify it, or require the administration to adopt the necessary measures.
Oversight of Disciplinary Sanctions
The penitentiary disciplinary regime provides for the possibility of sanctioning inmates for serious or very serious administrative infractions — such as assaults on officers or other inmates, possession of drugs, or possession of dangerous objects. These sanctions may consist of restrictions on communications, forced transfers, or the serving of the sanction in solitary confinement.
The PSJ has jurisdiction to review the lawfulness of these sanctions when challenged by the inmate. They may annul the sanction if the disciplinary procedure was irregular, if the infraction is not sufficiently proven, if the sanction imposed is disproportionate in relation to the infraction committed, or if the inmate's procedural guarantees were violated during the disciplinary procedure — such as the right to be heard or to have legal assistance.
Supervision of Classification and Progression in Degree
The Spanish penitentiary system classifies inmates into three treatment degrees — first, second, and third — which determine the level of restriction to which they are subject. Initial classification and subsequent reviews — which may involve progression to a less restrictive degree or regression to a more restrictive one — are the responsibility of the Treatment Board of the facility, but the PSJ exercises an essential supervisory role.
An inmate who disagrees with their classification — because they consider they should be placed in a more favourable degree — may appeal to the PSJ, who will assess whether the classification carried out by the Treatment Board complies with the legal criteria and whether the inmate's treatment plan justifies the proposed classification. The PSJ may confirm the classification or order that it be reviewed in the manner they consider appropriate.
Issuance of Completion Licences
When an inmate has served the period of sentence due to them — whether by exhaustion of the maximum term of imprisonment or because all applicable benefits and reductions have been applied — the PSJ issues the definitive completion licence that entitles the inmate to release. It is the final document certifying that the sentence has been fully executed.
Approval of Special Measures
The PSJ also has jurisdiction to authorise exceptional measures that may affect the inmate's rights, such as admission to forensic psychiatric hospitals, the application of solitary confinement for security reasons, or involuntary medical interventions where there is a risk to the inmate's life.
How an Inmate Can Approach the Penitentiary Surveillance Judge
Access to the PSJ is a right of the inmate that requires no intermediaries. The convicted person may address the PSJ directly through written complaints or appeals submitted via the penitentiary establishment, which is obliged to forward them to the PSJ without unjustified delay. The inmate does not require mandatory procedural representation to submit these documents — although legal assistance is highly advisable — and does not have to pay court fees.
The inmate's lawyer may act before the PSJ on their client's behalf, submitting appeals, requesting hearings, providing documentation, and making legal arguments in defence of the inmate's rights. Given that the PSJ's decisions can have a very direct impact on the convicted person's daily life and on the effective duration of their deprivation of liberty, having legal counsel specialised in Prison Law can make a very significant difference.
PSJ decisions that the inmate considers incorrect may be appealed to the Provincial Court of the judicial district in which the penitentiary establishment is located. In matters of greater significance, a cassation appeal to the Supreme Court may also be raised if the issue is of interest for the unification of penitentiary doctrine.
The Relationship Between the PSJ and the Prison Administration
The relationship between the PSJ and the prison administration is complex and sometimes tense. The PSJ is not the hierarchical superior of the administration — which falls under the Ministry of the Interior or the regional governments with devolved powers — but does hold judicial authority over the lawfulness of its actions.
This duality can generate friction when the administration considers that the PSJ's decisions are overly rights-protective, or when the PSJ considers that the administration is not properly implementing its rulings. In practice, the effectiveness of judicial oversight over the execution of sentences depends in part on the institutional culture of each court and each penitentiary establishment, and varies significantly depending on geography and on the individuals performing each function.
The PSJ has the power to visit the penitentiary establishments within their jurisdiction to verify the living conditions of inmates and to directly receive any complaints they wish to make. These visits, though not systematic, are an important instrument of direct supervision that no other body within the judicial system exercises.
The Importance of the PSJ as a Guarantee of the Rule of Law
The existence of the PSJ is not a luxury of the system: it is an inherent necessity of the Rule of Law. Without a judicial body supervising the execution of sentences, the deprivation of liberty could become a space exempt from legality, where the administration would act without effective controls and where the fundamental rights of the convicted person — who remains a citizen and a holder of rights — would be left unprotected.
The PSJ is the instrument that gives effect to the constitutional mandate that sentences be oriented towards reintegration, because it is the body that supervises whether treatment plans are individualised and appropriate, that controls whether permits and progression in degree are granted according to objective criteria, and that ensures that living conditions within penitentiary establishments are compatible with human dignity.
Ultimately, the PSJ is also the first link in a chain of judicial remedies that can reach as far as the Constitutional Court and the European Court of Human Rights. An inmate who has exhausted the avenues before the PSJ and the Provincial Court has access to these higher bodies, which have developed a highly significant body of case law on the rights of prisoners and on the conditions for serving sentences.
Frequently Asked Questions
Can the inmate speak directly with the Penitentiary Surveillance Judge?
Yes. The inmate may request a personal hearing with the PSJ, which the latter may grant depending on the circumstances of the case. They may also communicate with the PSJ in writing through the penitentiary establishment. The PSJ's visits to the facility are occasions on which inmates may address the judge directly. In practice, however, the most common form of communication is in writing, through the formal appeals and complaints submitted to the court.
Does the PSJ have jurisdiction over remand prisoners or only over convicted inmates?
The PSJ has jurisdiction over all persons held in a penitentiary establishment, both convicted inmates serving a sentence and remand prisoners — those in pre-trial detention. Although the PSJ's powers are broader with respect to convicted inmates — because they include oversight of treatment and progression in degree, which only make sense during the execution phase — the PSJ may also hear complaints from remand prisoners about the conditions of their detention and rule on the circumstances of their deprivation of liberty that do not fall within the jurisdiction of the examining judge in the criminal proceedings.
What happens if the penitentiary establishment fails to comply with a ruling by the PSJ?
If the prison administration fails to comply with a ruling by the PSJ, the latter may adopt coercive measures to ensure its enforcement, including the imposition of fines on the responsible officers and notification to the Ministry of the Interior or the competent regional body. In extreme cases, non-compliance with a judicial ruling may give rise to criminal liability for the offence of contempt of judicial authority. If the PSJ fails to act with the necessary effectiveness to enforce its own rulings, the inmate may lodge a complaint with the Provincial Court or raise the matter before higher bodies.
Can the PSJ order the transfer of an inmate to a penitentiary establishment closer to their family?
The PSJ may assess and rule on transfers, but their jurisdiction in this area is more limited than in others. The decision to transfer an inmate lies with the prison administration, which must provide reasoning for the transfer. The PSJ may review that decision if the inmate challenges it, and may annul it if they consider it insufficiently justified or that it disproportionately violates the inmate's right to maintain family ties — which is a particularly significant element of the treatment plan. However, the PSJ cannot directly order the administration to transfer an inmate to a specific facility: they may annul the transfer or identify the inadequacy of the reasoning, but the positive decision as to the destination lies with the administration.
Can the PSJ order the release of an inmate if it considers their situation to be unlawful?
In certain circumstances, the PSJ may be required to rule on situations involving a deprivation of liberty that may be unlawful. If the maximum period of imprisonment has been exhausted and the inmate has not been released, the PSJ can and must order their immediate release. If the sentence calculation contains an error resulting in an excess period of deprivation of liberty, the PSJ may correct it and order the person's release. However, the PSJ cannot order the release of an inmate who is serving a sentence within the legal timeframes, even if they consider the conviction to have been unjust: that function belongs to the criminal courts that handed down the judgment and to the appellate tribunals.
