Prison Disciplinary Proceedings in Spain: Offences, Sanctions and Appeals to the Supervision Judge (2026)

Prison disciplinary proceedings are the procedure through which the Spanish prison administration punishes disciplinary offences committed by inmates inside the facility. A poorly defended sanction does not stay on paper: until the entry is cancelled, it weighs against prison leave permits, grade classification and prison benefits. As lawyers specialising in prison disciplinary proceedings, with +15 years of experience in penitentiary law, we explain which offences exist, which sanctions may be imposed, what safeguards inmates have and how to appeal to the Prison Supervision Judge (Juez de Vigilancia Penitenciaria).

What Disciplinary Proceedings Are and Who Imposes the Sanctions

The disciplinary regime rests on two rules: the General Penitentiary Law (Organic Law 1/1979, LOGP), which sets the catalogue of sanctions and the basic safeguards, and the Prison Regulations approved by Royal Decree 190/1996, which govern the sanctioning procedure in Articles 240 et seq.

When the prison management learns of facts that may amount to a disciplinary offence, a file is opened which ends, where applicable, before the facility’s Disciplinary Commission: this is the body with authority to impose the sanctions.

Very Serious, Serious and Minor Offences: Where They Are Defined

Here lies a peculiarity that surprises even lawyers: disciplinary offences are still defined in Articles 108, 109 and 110 of the 1981 Prison Regulations (Royal Decree 1201/1981), provisions expressly kept in force by the repealing provision of Royal Decree 190/1996. In other words, the procedure follows the 1996 regulations, but the catalogue of offences lives in the earlier text.

• Article 108 of the 1981 Regulations: very serious offences.
• Article 109 of the 1981 Regulations: serious offences.
• Article 110 of the 1981 Regulations: minor offences.

The first check in any defence is one of pure typicity: whether the alleged conduct genuinely fits one of the catalogued offences and, moreover, the correct category. A minor offence is not a very serious one: the classification determines which sanction may be imposed and its later effects.

The Catalogue of Sanctions under Article 42 LOGP

Only the sanctions listed in Article 42 LOGP may be imposed, each with its statutory ceiling:

Sanction	Maximum limit
Solitary confinement in cell	14 days at most
Weekend confinement	Up to 7 weekends
Loss of prison leave permits	Up to 2 months
Restriction of communications	Up to 1 month
Loss of walks and shared recreational activities	Up to 1 month
Reprimand	—

Any sanction exceeding these ceilings is unlawful and must be appealed.

Limits on Solitary Confinement (Article 43 LOGP)

Solitary confinement in cell is the harshest sanction in the system, which is why the LOGP surrounds it with specific safeguards in Article 43:

• It requires a medical report and medical monitoring for as long as the sanction lasts.
• It cannot be applied to pregnant women or until six months after the end of the pregnancy, to breastfeeding mothers, or to mothers who have their children with them in prison.

These safeguards are not formalities: confinement enforced without proper medical supervision, or imposed on an inmate protected by the provision, can be challenged. In practice, the defence must always review how the sanction was ordered and how it is being enforced, not only whether the offence occurred.

Procedural Safeguards: Statement of Charges and the Right to a Defence

The core safeguard is stated in Article 44.2 LOGP: no inmate may be sanctioned without first being informed of the offence attributed to them and without having been allowed to present their defence. On that basis, the procedure under Articles 240 et seq. of the Prison Regulations follows recognisable steps:

• Written statement of charges: the inmate must receive in writing the facts alleged and their classification.
• Time limit for submissions: the inmate may answer the charges and set out their version of events.
• Proposing evidence: the inmate may request the evidence that supports their defence.
• Advice: the inmate may seek advice during the proceedings, including from a lawyer.

If any of these safeguards fails — a statement of charges that does not specify the facts, a time limit that is not respected, relevant evidence refused without reason — the sanction is flawed from birth and the appeal has a strong procedural ground.

How to Prepare Submissions against the Statement of Charges

The submissions are the first real opportunity for a defence, and a generic filing wastes it. Our working method:

• Scrutinise the statement of charges: which specific fact is alleged, which offence is invoked and whether the classification (very serious, serious or minor) is correct.
• Set out the inmate’s version of events in an orderly, coherent way, avoiding contradictions that would cost dearly later.
• Propose useful evidence: evidence that can genuinely support the defence version or dismantle the allegation.
• Raise any breached safeguards at this early stage: a written record makes the later appeal stronger.
• Request, in the alternative, the lower classification and the minimum sanction, in case the Disciplinary Commission does not dismiss the charge.

Appeal to the Prison Supervision Judge

Sanctioning decisions of the Disciplinary Commission may be appealed to the Prison Supervision Judge. This follows from Article 76.2.e LOGP, which entrusts that judge with resolving, by way of appeal, inmates’ complaints concerning disciplinary sanctions.

The appeal also has a decisive practical effect: under Article 44.3 LOGP, filing it suspends the enforcement of the sanction, except for acts of serious indiscipline whose correction cannot be delayed. Appealing in time is not just a matter of principle: in the general run of cases it prevents the sanction from being served while a judge reviews its lawfulness.

The appeal can attack both substantive defects (the fact did not happen, is not proven or does not fit the offence applied) and procedural ones (a defective statement of charges, lack of a fair opportunity to respond, refused evidence, or a sanction outside the catalogue or above the statutory ceiling of Article 42 LOGP).

Effects on Leave Permits, Classification and Benefits: Cancelling the Entries

The real cost of a sanction is rarely the sanction itself, but the shadow it casts over the file. Until the entry is cancelled, the sanction counts against the inmate when assessing prison leave permits, progressions — and above all regressions — in classification, as we explain regarding first-grade classification and how to appeal it, and prison benefits.

That is why the defence strategy has two phases: appealing unlawful sanctions so they never become final entries, and, for those already final, applying for the cancellation of the entries as soon as the requirements are met. A clean disciplinary record is a practical precondition for moving towards leave permits, open regime and conditional release.