Putative Self-Defense as a Form of Mistake of Fact

Keywords: putative self-defense; mistake of fact; imagined attack; intent; negligence; Article 14 of the Criminal Code.

1. When the attack exists in the person's mind but not in reality

Putative self-defense involves no actual attack, but the person mistakenly perceives facts on which they believe they are defending themselves. This distinguishes it both from lawful self-defense and from knowing violence later justified by a general sense of danger.

The issue belongs to the doctrine of culpability. An objectively nonexistent attack cannot establish actual self-defense under Article 12. The mistaken understanding may, however, matter under the rules on mistake of fact and culpable causation. Article 14 is the statutory basis for distinguishing excluded intent from potentially remaining negligent liability. The Code contains no separate article entitled “putative self-defense.” ^[1]

The article argues that legal assessment must reconstruct not only the objective circumstances but also the particular mistaken understanding. Establishing fear is insufficient. The inquiry must clarify what exactly the person believed was happening, why they perceived it that way, and whether defense would have been permissible on those assumed facts.

2. Four different situations that must not be confused

The first situation is an actual, immediate unlawful attack and defense within the necessary limits. Article 12 applies, not mistake of fact. The second is an actual attack with excessive defense, requiring examination of culpability and the special rules governing excess. ^[1]

The third is an objective absence of an attack coupled with a genuine factual mistake about its existence. This is the situation raising putative self-defense. The fourth is awareness of the true facts but an incorrect belief that the law permits revenge, punishment, or violent self-help. The latter is not a mistake of fact about an attack merely because the actor calls the conduct “defense.”

Mental disorders potentially affecting criminal responsibility under Article 33 are a separate issue. Not every distorted perception amounts to lack of criminal responsibility, just as not every suspicion is a mistake of fact excluding intent. Different legal grounds require different factual prerequisites and cannot be used interchangeably. ^[1]

3. The content of the mistaken understanding

The understanding must concern specific facts: a movement perceived as an immediate attack; an object perceived as a dangerous instrument; or conduct toward another person perceived as unlawful violence. A general belief that someone is dangerous does not by itself prove a mistake about an immediate attack at the particular moment.

The inquiry must identify what the person saw, heard, or otherwise perceived and how they connected it to immediate danger. The distinction between perception and assumption is material. Earlier events may explain the interpretation of an ambiguous signal but do not remove the need to establish the signal itself and its actual perception.

The mistaken understanding need not coincide in every detail with its later verbal description. Events may unfold rapidly and perception may be incomplete. But the material circumstances that, in the actor's understanding, justify a defensive response must be distinguishable from a subsequently constructed defense account.

4. Why mistake may exclude intent

Someone who genuinely perceives a nonexistent attack and responds within what would be permissible in the imagined circumstances is not in the same position of culpability as someone who knows there is no attack and deliberately harms another. The distinction follows from the principle of culpable responsibility and the rules on mistake of fact, not from creating an objective right of defense against an innocent person. ^[1]

Two inquiries are necessary. Is the mistake about the factual circumstances genuine? Would the assumed facts justify the particular defensive act? If a person mistakenly expects a slight push, that does not automatically place every serious injury within the scope of permissible assumed defense.

This avoids turning subjective fear into a general license for violence. The law recognizes factual mistake but does not unconditionally accept the actor's personal assessment of permissible means. Facts may be misperceived; legal limits are not determined unilaterally by the individual.

5. Excusable mistake and negligent causation

After intent is excluded, it must be examined whether the ignorance or misperception was negligent. If the person was obliged and able to recognize the true situation, negligent liability may arise, but only if the law criminalizes the corresponding negligent causation. Article 14(2) does not create new negligent offenses. ^[1]

The duty and ability to assess correctly must be established specifically. Visibility, response time, earlier clear signals, the ability to distinguish objects, and information actually available to the actor all matter. The fact that a later viewer of a recording recognizes the circumstances does not automatically establish that the actor could have done so within seconds.

Conversely, urgency must not be presumed merely because the actor asserts it. If objective evidence shows sufficient time, clear visibility, and no ambiguous acts, possible negligent or intentional causation must be examined against the actual facts. There is no general privilege for a hasty, aggressive interpretation.

Special knowledge and professional training may affect the assessment that was required and possible. They do not, however, create a presumption of intent. Nor does alcohol use itself establish an excusable mistake; the particular mental condition and applicable culpability rules must be examined.

6. An assumed attack and excessive assumed defense

The most difficult cases involve a person who mistakenly perceives an attack but causes harm that would be manifestly excessive even on the facts they imagined. Establishing the mistake alone does not resolve culpability in full. The mistake concerning danger must be separated from the attitude toward the chosen injury.

The mitigated offense for exceeding actual self-defense cannot mechanically be applied simply because the person felt attacked. The statutory path from the established mistaken understanding to the particular classification must be explained. The same applies to invoking fear or confusion under Article 12(4), whose requirements cannot be replaced by a general assertion of fear. ^[1]

The approach advocated here is sequential: first reconstruct the imagined attack, then assess permissible defense against it, and only afterward determine how the mistake affects culpability for the actual injury. This proposes no universal classification; it ensures that separate legal questions are not skipped.

7. Judicial examination is not exhausted by denying an actual attack

The absence of an actual attack excludes actual self-defense, but logically is insufficient to exclude putative self-defense. The latter requires examining the actor's perception. The court must decide whether the facts support the asserted mistaken understanding, not merely repeat that the victim was not objectively attacking.

In Judgment No. 131 of March 17, 2025, in criminal case No. 54/2025 of the Supreme Court of Cassation, Second Criminal Division, putative self-defense was examined against the accepted circumstances, the victim's conduct, and the injury mechanism. Its rejection rested on the specific evidentiary lack of support for the supposed defensive situation, not on a proposition that putative self-defense is inherently impossible. ^[2]

An individual factual consideration from such a judgment must not be converted into a general medical or legal rule. The nature of injuries matters in the particular mechanism, but does not establish a universal rule that a given number or depth of wounds always excludes a defensive response.

8. Evidence of the actual understanding

Immediate statements, communications before the event, participants' positions, lighting, recordings, and conduct immediately after the reaction may all be relevant. No source should be assessed in isolation. Later realization of a mistake differs from the understanding held at the time of action.

Expert evidence may clarify perceptual capacity, features of mental condition, or consistency between the described reaction and objective traces. It cannot determine the legal conclusion whether putative self-defense existed. That assessment belongs to the authority deciding the case. ^[3]

The accused does not bear the burden of proving innocence. This does not turn every assertion of fear into an established fact; it requires the prosecution and court to examine relevant exculpatory circumstances. Proof beyond doubt under Article 303 of the Criminal Procedure Code also concerns culpability in relation to the injury. ^[3]

The reasons for judgment must distinguish three possible conclusions: the mistaken understanding did not exist; it existed but was formed negligently; or it existed and cannot be attributed to negligence. They produce different consequences and cannot be replaced by the general assessment that “the reaction was unjustified.”

9. Analytical example and conclusion

This hypothetical does not describe an actual case. In a poorly lit room, someone perceives an object in another person's hand as an immediate instrument of attack and responds. Legal assessment depends on the actual movements, visibility, prior conduct, and time available for recognition. A genuine mistake must be established, together with the defensive action permissible against the perceived danger.

If the person recognized the object's harmless nature but nevertheless harmed the other because of an earlier conflict, there is no mistake of fact about an attack. If a genuine mistake occurred but the person could and should have assessed correctly, negligent causation arises for consideration. If the mistake was not negligent, the conclusion differs. None of these alternatives can be chosen without reconstructing the evidence.

Putative self-defense is not an objective justification for injuring an innocent person. It is a doctrine precisely differentiating culpability in a mistakenly perceived defensive situation. Its application safeguards individual culpable responsibility without turning fear into an entitlement to violence.

This article is a general discussion of legal theory and practice. A specific matter requires consideration of the law applicable at the relevant time and Article 2 of the Criminal Code. Hypotheticals serve legal analysis only and do not describe actual cases.