Mitigating Circumstances in Spain: Strategies to Reduce a Sentence

When the prosecution evidence is overwhelming and acquittal is unlikely, the criminal lawyer's work focuses on minimising the punitive harm. This is where the mitigating circumstances (Art. 21 CP) come into play.

Repair of the Harm

It is the leading mitigating factor in economic offences. If the accused repairs the harm caused to the victim before the trial, sentence reductions of up to two degrees can be achieved.

Confession of the Offence

If the offender confesses the offence before learning that justice is acting against them, this mitigating factor applies. It is vital in the early stages of the investigation.

Undue Delay

If the judicial process is extraordinarily delayed for reasons beyond the accused's control, that suffering is offset by lowering the penalty.

Mental Anomalies and Addictions

The catalogue of Article 21 of the Criminal Code also covers the situation of those who act with impaired faculties. Mental anomalies that diminish the capacity to understand the unlawfulness of the act or to act in accordance with that understanding, as well as a serious addiction to substances where it has influenced the commission of the offence, allow the criminal response to be mitigated. Proving them requires serious expert work: psychiatric or psychological reports, treatment histories and clinical documentation connecting the impairment with the specific act being tried.

The Analogous Mitigating Factor

Article 21 itself closes its catalogue with an open clause: any other circumstance of analogous significance to the previous ones. This route allows the defence to invoke situations which, without literally fitting the previous categories, share their rationale. It is an area where the criminal lawyer's argumentative creativity, always supported by evidence, can make a real difference to the final sentence.

How Mitigating Factors Affect the Sentence

Not all mitigating factors carry the same weight. When applied as ordinary, a mitigating factor obliges the court to moderate the penalty within the legal range for the offence. When it is applied as highly qualified — because its intensity goes notably beyond the ordinary case — its effect is much greater and can reach reductions such as the one mentioned for repair of the harm, of up to two degrees. The concurrence of several mitigating factors reinforces that effect. That is why the strategy is not to invoke a single circumstance, but to build and document every one the case allows.

How They Are Proven in Practice

• Repair of the harm: the usual means is the judicial deposit of the amounts before the trial, with documentary proof that the payment is intended to repair the victim's loss.
• Confession: the timing must be established: it only operates if the offender confesses before learning that the proceedings are directed against them, hence its importance in the first hours.
• Undue delay: the defence must identify in the case file the specific periods of standstill not attributable to the accused and argue them in detail.
• Anomalies and addictions: these require expert evidence and clinical documentation contemporaneous with the events.

The Strategic Role of Mitigating Factors

Working on mitigating factors is not giving up: it is defending realistically. When the prosecution evidence is solid, each accepted mitigating factor brings the sentence closer to the legal minimum and can place it at thresholds that make it possible to avoid actually entering prison. And in negotiating a possible guilty plea, arriving with the mitigating factors documented — the harm repaired, the early confession, the delays identified — gives the defence concrete arguments to obtain a sentence appreciably lower than the one initially requested. It is work that starts on the first day of the proceedings, not on the eve of the trial: many mitigating factors only exist if they are prepared in time.