Self-defense is not the only justifying circumstance. The law also justifies defense of a relative and defense of a stranger, which remove criminal liability entirely. Defense of a relative applies when one acts to defend the person or rights of a spouse, ascendants, descendants, or legitimate/adopted/natural siblings, or relatives by affinity in the same degrees and by consanguinity within the fourth civil degree; its requisites are unlawful aggression, reasonable necessity of the means used to prevent or repel it, and that the one defending did not participate in provoking the aggression (or if the relative gave provocation, that the defender had no part in it). Defense of a stranger applies to defending any other person, with the same first two requisites plus the requirement that the defender was not induced by revenge, resentment, or other evil motive. In all, unlawful aggression is the indispensable element — without it, there is no valid defense.
Most people know about self-defense. Fewer realize the law equally justifies coming to the aid of a relative — or even a stranger.
Justifying Circumstances Remove Liability
Defense of a relative and defense of a stranger are justifying circumstances. When present, the act is lawful and there is no criminal liability at all (and generally no civil liability either).
Defense of a Relative
One may lawfully defend the person or rights of a relative, specifically:
- Spouse, ascendants, and descendants;
- Legitimate, natural, or adopted siblings, and relatives by affinity in the same degrees; and
- Relatives by consanguinity within the fourth civil degree.
Its requisites are:
- Unlawful aggression against the relative;
- Reasonable necessity of the means used to prevent or repel it; and
- In case the relative gave provocation, that the defender had no part in it.
Defense of a Stranger
One may also defend the person or rights of any other person (a stranger). Its requisites are:
- Unlawful aggression;
- Reasonable necessity of the means used; and
- That the defender was not induced by revenge, resentment, or other evil motive.
The third requisite guards against using “defense of a stranger” as a cover for a personal grudge.
Unlawful Aggression Is Indispensable
Across all these defenses — self, relative, and stranger — unlawful aggression is the indispensable element. It means an actual, sudden, and imminent attack (or imminent threat of one) that puts life or safety in real danger. Without unlawful aggression, there is no valid defense, no matter how noble the intention. A mere insult, threatening words alone, or a completed and finished attack does not qualify.
Reasonable Necessity of the Means
The means used must be reasonably necessary to repel the aggression — there must be a rational proportion between the aggression and the defense. Excessive force beyond what was necessary can reduce the justification to an incomplete defense (a mitigating circumstance) rather than a full one.
Practical Takeaways
- The law justifies defense of a relative and defense of a stranger, not just self-defense;
- Both require unlawful aggression and reasonable necessity of the means; defense of a stranger adds no evil motive;
- Unlawful aggression is indispensable — without it, there is no valid defense.
Frequently Asked Questions
Can I legally defend a relative from an attack? Yes. Defense of a relative is a justifying circumstance. It requires unlawful aggression against the relative, reasonable necessity of the means used, and that if the relative provoked it, the defender had no part in the provocation.
Can I defend a stranger? Yes. Defense of a stranger justifies defending any other person, with the requisites of unlawful aggression, reasonable necessity of the means used, and that the defender was not induced by revenge, resentment, or other evil motive.
What is the most important element of these defenses? Unlawful aggression, an actual, sudden, and imminent attack that endangers life or safety. Without unlawful aggression, there is no valid defense of self, relative, or stranger.
What if the force used was excessive? Excessive force beyond what was reasonably necessary can reduce the defense to an incomplete justifying circumstance, which is merely mitigating, rather than a full justification that removes liability.
This commentary is for general informational purposes only and does not constitute legal advice. For guidance specific to your situation, please consult a licensed attorney.
If you have questions about your rights or options under Philippine law, our firm is available to assist. You may reach us via Viber or WhatsApp, call us at 0995 433 5550, or send an email to vivasnobles@gmail.com. We look forward to hearing from you.