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What Are Assault Crimes: Concept, Types and Penalties (Arts. 147-156 CP)
The crime of assault (Arts. 147 to 156 of the Spanish Criminal Code) is one of the most invoked types in criminal courts and, at the same time, one with the greatest interpretive margin. The protected legal interest is bodily integrity and physical and mental health, both recognized as a fundamental right in Art. 15 of the Constitution. The provision punishes whoever, by any means or procedure, causes another an injury that impairs their bodily integrity or their physical or mental health, provided that the injury objectively requires, for its healing, in addition to a first medical assistance, medical or surgical treatment. Consolidated Supreme Court case-law has clarified that the boundary between crime and minor infraction depends, essentially, on the entity of the required medical treatment, distinguishing between mere topical cure and qualified technical intervention.
Types of Injuries and Modalities
The Code articulates several graduated modalities. The basic type of Art. 147.1 punishes injury requiring medical or surgical treatment. Art. 147.2 contemplates the minor assault offence when only first aid was required. Art. 148 aggravates the penalty when circumstances such as the use of weapons, dangerous instruments, cruelty, treachery concur or when the victim is a minor under 12, a person with disability, spouse or partner. Art. 149 typifies qualified injuries that cause loss or uselessness of organ or principal limb, sense or impotence, sterility, serious somatic or psychic illness, or serious deformity. Art. 150 contemplates the loss or uselessness of non-principal limb or minor deformity. Art. 152 regulates negligent injuries serious or less serious. Art. 153 sanctions habitual domestic violence. And Art. 154 typifies the tumultuous brawl when several persons attack each other with the use of dangerous instruments without the specific author of the serious injuries being identified.
Penalties and Medical Expert Reports
Penalties are extremely variable according to the entity of the injury. The basic crime of Art. 147.1 carries 3 months to 3 years' prison or 6 to 12 months' fine. The minor offence of Art. 147.2 is only punished with 1 to 3 months' fine. Aggravated injuries under Art. 148 raise the penalty to 2 to 5 years' prison. Loss of organ or sense under Art. 149 sanctions with 6 to 12 years' prison — one of the most serious types of the Code after homicide. Loss of non-principal limb or minor deformity under Art. 150 with 3 to 6 years' prison. Serious negligent injuries of Art. 152.1 with 3 to 6 months' prison or 6 to 18 months' fine. In all cases, civil liability operates calculated according to the scale of Law 35/2015 on traffic accidents, applied by analogy: compensation for impeditive and non-impeditive days, aesthetic damage, functional sequelae, lost income and moral damage. In serious cases, the amount can reach one million euros.
Technical defense rests on several consolidated axes. The first is requalification to minor offence: the boundary between the less serious crime (Art. 147.1) and the minor crime (Art. 147.2) depends on whether the injury required medical treatment or only first aid; defense medical expertise is decisive in challenging the classification of the forensic doctor. The second is negligence versus intent: when the injury occurred in the context of a struggle, fall or accident, defense must prove the absence of animus laedendi to redirect the type to negligence, dramatically less burdensome. The third axis is the requalification of anatomical gravity: Supreme Court case-law on "principal organ", "principal limb" and "serious deformity" is casuistic and allows, with medical expertise, placing the injury in Art. 150 (less serious) instead of Art. 149 (more serious), with a difference of up to 6 years' prison.
Self-Defense, Mitigating Factors and Tumultuous Brawl
The fourth defensive axis is self-defense under Art. 20.4 CP: when the client repelled prior unlawful aggression with necessary and proportionate means, without sufficient provocation, complete exemption operates; if some but not all requirements concur (incomplete exemption), the penalty is reduced by one or two degrees under Arts. 21.1 and 68 CP. The fifth axis is the mitigating factors: outburst (Art. 21.3), full intoxication (Art. 21.2), damage repair (Art. 21.5), confession (Art. 21.4); each reduces the penalty in different measure and combines strategically. The sixth axis is the tumultuous brawl of Art. 154 CP: when in a group fight with use of dangerous instruments the specific author of serious injuries does not appear, all participants respond under the attenuated type of tumultuous brawl, with 3 months to 1 year' prison, much less burdensome than individualized injuries.
In current forensic practice, assault proceedings concentrate on four recurrent scenarios: nightlife (fights in discotheques, terraces and festivals with use of bottles, glasses or blunt instruments), neighborhood and traffic conflicts (parking aggressions, road discussions, "road rage"), family violence (Art. 153 CP) with its specific evidentiary requirements, and workplace and traffic accidents reduced to serious negligent injuries (Art. 152). The reform by Organic Law 1/2015 consolidated the boundary between minor and less serious crimes, and Organic Law 10/2022 on integral sexual freedom guarantee has had indirect reflection in the concurrence with injuries derived from sexual aggression. At Alonso Sala we intervene with defense forensic medical experts, traumatologists to discuss injury mechanics, psychologists to prove post-traumatic sequelae and biomechanical experts in impact cases. We approach each file with the conviction that in assault crimes the difference between a minor penalty and prison, as well as the indemnity amount, is built document by document from the first medical report.
hub Practice Areas
Basic & Minor Injuries
Technical defense to downgrade the crime to minor. Key difference between first aid and medical treatment.
Serious Injuries
Defense in cases of organ loss or deformity. Articles 149 and 150 of the Criminal Code.
Reckless Injuries
Defense in workplace and traffic accidents. The line between civil negligence and criminal recklessness.
Brawl & Riots
Defense in group fights where the author of the specific injury is not identified. Art. 154 CP.
Why Alonso Sala for Assault Offenses?
In assault crimes, medical expert is as important as lawyer. We work with the best to downgrade classification and minimize penalties.
- check Own medical expertise: discuss impeditive days, sequelae, and necessary treatment.
- check Technical defense proving complete self-defense (prior aggression + proportionality).
- check Downgrade strategy: serious to minor, intent to recklessness.
- check Forensic coordination to minimize civil compensation (traffic scale).
Crimes Against Persons in Spain: Homicide, Assault and Threats — Defense Guide
Crimes against persons — homicide (Art. 138 CP), murder (Art. 139 CP), assault/bodily harm (Art. 147-156), and threats (Art. 169-171 CP) — are among the most severely punished offenses in Spain, frequently resulting in substantial prison sentences. A robust forensic and legal defense is critical from the first moments of arrest.
Penalty Table: Crimes Against Persons
| Offense | Article | Penalty |
|---|---|---|
| Reckless Homicide | Art. 142 | 1 – 4 years |
| Intentional Homicide | Art. 138 | 10 – 15 years |
| Murder (Asesinato) | Art. 139 | 15 – 25 years |
| Aggravated Murder | Art. 140 | Permanent Revisable Prison |
| Minor Assault | Art. 147.2 | Fine 1-3 months |
| Serious Bodily Harm | Art. 149 | 6 – 12 years |
| Criminal Threats | Art. 169 | 1 – 5 years |
Core Defense Strategies
Self-Defense (Art. 20.4 CP)
The three legal requirements are: unlawful aggression, proportional response, and no provocation. Documenting prior threats and injuries is paramount from day one.
Reclassification: Murder → Homicide
The difference between Art. 138 and 139 CP means up to 10 years' additional prison. Defense focuses on disproving premeditation, treachery, or cruelty — the three murder qualifiers.
Psychiatric Defense / Diminished Responsibility
If the accused had a mental disorder at the time of the act, total or partial irresponsibility (Art. 20.1) or diminished responsibility (Art. 21.1) significantly reduce or eliminate the sentence.
Forensic Medical Evidence
Independent autopsy, injury assessment, and toxicology reports often contradict expert testimony submitted by the prosecution. A second forensic medical opinion is always recommended in serious cases.
Frequently Asked Questions
What is the difference between a minor and serious injury crime? expand_more
What is considered 'deformity'? expand_more
What happens if I get beaten by several people? expand_more
What is the loss of a main limb? expand_more
Can I claim self-defense? expand_more
What compensation am I entitled to? expand_more
If I was drunk, is the penalty lowered? expand_more
What is the crime of reckless injuries? expand_more
Can I be banned from approaching the victim? expand_more
What happens if the victim forgives me? expand_more
Is infecting a disease (HIV) a crime? expand_more
What is 'animus laedendi'? expand_more
Are private health reports valid? expand_more
What happens if I lose a spleen or kidney? expand_more
Is cutting someone's hair a crime? expand_more
Difference with attempted homicide? expand_more
Does using weapons aggravate the penalty? expand_more
Does provocation reduce penalty? expand_more
What is forced sterilization? expand_more
When do injuries expire? expand_more
Defense strategy if accused of assault? expand_more
Personal Injury & Violent Crimes Defense
Defense of violent crimes requires rapid evidence preservation in the first hours and careful management of the suspect's first statement. Success depends on coordinated expert work: forensic psychiatry, forensic medicine, ballistics and biomechanics.
Looking for a Assault & Physical Injury Law Lawyer in Spain?
We offer specialized criminal defense in courts across Madrid and the rest of Spain. We handle each Assault & Physical Injury Law case with the urgency and technical rigor it requires from day one.
Do you need specialised legal assistance?
The judicial system is complex. We have the criminal-law specialisation and technical resources required to take on the defence.