Advanced legal guide to homicide, gross negligence and self-defence under the Spanish Criminal Code
Homicide is one of the most serious criminal offences under Spanish law. Nevertheless, judicial practice consistently shows that not every death caused by human conduct constitutes intentional homicide.
The legal qualification of such cases requires a highly technical analysis, focusing on the defendant’s mental element, the causal relationship between conduct and result, and the factual context surrounding the incident.
From a criminal law perspective, understanding the distinction between intentional homicide, negligent homicide, fortuitous events and lawful self-defence is crucial. A misclassification may lead to dramatically different legal consequences, ranging from relatively limited custodial sentences to long-term imprisonment of up to fifteen years.
1. What constitutes homicide under the Spanish Criminal Code? (Art. 138 SCC)
Article 138 of the Spanish Criminal Code criminalises the act of killing another person and provides for a sentence of ten to fifteen years’ imprisonment.
The decisive element of this offence is the existence of animus necandi, namely the intent to kill, which may take the form of direct intent or eventual intent.
Eventual intent arises when the perpetrator, without explicitly seeking the victim’s death, consciously accepts a highly lethal risk.
For intentional homicide to be established, the prosecution must prove:
- Conduct causally relevant to the death.
- A certain and verified fatal outcome.
- A direct causal link between the act or omission and the death.
- A subjective element: intent to kill or acceptance of the lethal result.
If any of these elements cannot be demonstrated, the offence may be reclassified as negligent homicide or criminal liability may be excluded.
2. Intentional homicide vs. negligent homicide: the decisive distinction
Intentional homicide
Intentional homicide exists when the perpetrator:
- directly intends to cause death, or
- consciously accepts an extremely high lethal risk.
Typical examples recognised in case law include:
- Deliberate attacks against vital areas of the body.
- Use of inherently dangerous means capable of causing death.
Negligent homicide (Art. 142 SCC)
Where death was neither intended nor accepted but resulted from gross negligence or a serious breach of the duty of care, the offence may be classified as negligent homicide under Article 142.
Although penalties are lower, they may still involve imprisonment and significant civil liability.
Courts evaluate the objective dangerousness of the conduct and whether the fatal outcome was reasonably foreseeable.
3. When there may be no criminal offence: fortuitous event and lawful self-defence
In many criminal proceedings, the central issue is not whether death occurred, but whether criminal liability exists.
Fortuitous event
A fortuitous event excludes criminal responsibility when the fatal outcome was unforeseeable and unavoidable.
Lawful self-defence (Art. 20.4 SCC)
Self-defence leads to full acquittal when the following requirements are met:
- Unlawful aggression.
- Necessity of the defensive act.
- Proportionality between attack and defence.
- Absence of prior provocation.
Spanish courts frequently acquit defendants when the evidence demonstrates that the lethal act was the only reasonable means of preventing an imminent and unlawful attack.
4. What judges analyse in homicide cases
Judges assess a wide range of factors, including:
- The defendant’s intent.
- Forensic reports and injury patterns.
- The causal mechanics of the injuries.
- Contradictions between statements of the accused and witnesses.
- Prior conflicts or threats.
- Post-offence behaviour.
In homicide proceedings, every factual and technical detail can influence the legal classification of the offence.
5. The importance of specialised criminal defence in homicide cases
Given the complexity of these proceedings, specialised criminal defence is essential.
- Challenging forensic reports and reconstructions.
- Analysing proportionality in cases of self-defence.
- Examining the trajectory and mechanics of injuries.
- Reviewing potential violations of fundamental rights during arrest, searches or evidence handling.
- Presenting alternative expert evidence.
- Using technical reconstructions where necessary.
A carefully designed defence strategy may result in:
- reclassification of intentional homicide as negligent homicide,
- application of mitigating circumstances,
- or full acquittal based on lawful self-defence or fortuitous events.
The distinction between intentional homicide, negligent homicide and lawful self-defence is legal, technical and decisive. In such cases, procedural strategy, factual reconstruction and expert analysis become essential elements for acquittal or for a substantial reduction of penalties.
Under investigation for homicide or injuries resulting in death?
At Granda&Asociados we have extensive experience in criminal defence in serious offences and technically complex proceedings.
Request a confidential consultation. We design defence strategies tailored to each case, particularly in investigations involving homicide, attempted homicide or lawful self-defence.