Exceeding the Limit of Self-Defense and Its Legal Consequences

Exceeding the Limit of Self-Defense and Its Legal Consequences. While self-defense, the right of individuals to protect themselves or others against an unjust attack in Turkish Criminal Law (TCK Article 25), is built upon the principle of “proportionality” between attack and defense, the legislator, taking into account the frailties of human nature and the psychological pressure of the moment, has subjected situations where the limit is exceeded to a special regime in Article 27 of the TCK. Exceeding the limit in self-defense, one of the grounds for legality, provides for a reduction in the sentence (TCK Article 27/1) if the perpetrator exceeds the limit unintentionally, as a result of carelessness or negligence. If the limit is exceeded due to excusable excitement, fear, or anxiety caused by the attack, the perpetrator’s culpability is deemed eliminated, and a ruling of “no need for punishment” is issued.

1. Philosophical and Normative Foundations of the Right to Defense in Criminal Law

Criminal law is a branch of public law that regulates the use of the power to punish (jus puniendi), which is under the monopoly of the state, and aims to ensure social peace by establishing a balance between crime and punishment. In modern states governed by the rule of law, individuals are generally prohibited from protecting their own rights personally (vigilante justice). The authority to use force and impose sanctions has been transferred to the state. However, the legal order does not leave the individual defenseless against unjust attacks in emergency situations where the state’s protection mechanisms cannot intervene immediately or where the intervention of law enforcement is impossible. In this context, legitimate self-defense is the recognition of the “self-preservation” instinct, which is the most basic instinct of the individual, by the legal order and placing it on a normative ground. Legitimate self-defense is the most rooted and vital among the grounds for justification; because repelling attacks against life, bodily integrity, sexual immunity, or property is accepted as a requirement of the rule of law.

In the Turkish legal system, the institution of legitimate self-defense, regulated in Article 25 of the Turkish Penal Code (TCK) No. 5237, removes the criminal nature of the perpetrator’s act as a ground for justification. However, this right does not mean unlimited and unsupervised use of force. The legal order has subjected the use of the right of defense to certain limits, conditions, and measures. This balance that must exist between the attack and the defense is expressed by the principle of “proportionality.” It is at this point that one of the most complex and controversial areas of criminal law, the problem of “exceeding the limits” (exces de defense), arises. If the person defending themselves exceeds the measure necessary to repel the attack, makes a timing error, or falls into disproportion in the tools used, the limits of the ground for justification are exceeded. Article 27 of the TCK regulates this delicate balance and determines what the criminal liability of the perpetrator will be in case the limit is exceeded.

This comprehensive report aims to examine the institution of exceeding the limits of legitimate self-defense based on the distinctions of exceeding the limit intentionally, negligently, and due to excusable excitement, fear, or panic. In the report, theoretical discussions within the systematics of the TCK, established and current case law of the Court of Cassation (Yargıtay), divergent views in the doctrine, and modern legal discussions such as “Battered Woman Syndrome” will be analyzed in depth. In addition, the relationship and differences of the institution of exceeding the limits with other criminal law institutions such as unjust provocation and error will be discussed with academic rigor. The aim is not just to repeat the wording of the legislation, but to reveal the purpose of the norm (ratio legis) and its reflections in practice from a holistic perspective.

2. Limits of Legitimate Self-Defense and Analysis of the Concept of “Exceeding the Limits”

In order to speak of exceeding the limits of legitimate self-defense, there must first be a legally valid situation of legitimate self-defense. In other words, exceeding the limits is not an independent ground for justification, but a deviation that occurs in the execution of an existing state of legitimate self-defense. Therefore, it is essential to clarify the criteria determining the limits of legitimate self-defense and the legal nature of the concept of “limit.”

2.1. Existence of the Limit as a Precondition for Legitimate Self-Defense

In light of Article 25 of the TCK and the doctrine, the existence of legitimate self-defense depends on the simultaneous realization of conditions regarding the attack and the defense. Conditions regarding the attack are; the existence of an attack, the attack being unjust, and directed at a right that can be protected by legitimate self-defense. The conditions regarding the defense are; the defense being mandatory, directed against the attacker, and proportional to the attack.

Concept of “exceeding the limits” is essentially related to the violation of the “proportionality” principle among the conditions of defense. The proportion between attack and defense is measured not only by the nature of the tools used (weapon against weapon) but also by the balance between the gravity of the danger created by the attack and the gravity of the defensive act. As stated in the justification of TCK Art. 25, the defense being of a measure to repel the attack is the basic condition of legitimate self-defense. However, it is contrary to the ordinary flow of life for the person under attack to determine with a millimeter calculation which tool or what measure of force will be “sufficient” to repel the attack within the excitement and fear of that moment. Here, the legislator, observing this human condition, has envisaged special regulations (TCK Art. 27) that protect the perpetrator or reduce their punishment in case the limit is exceeded.

2.2. Forms of Exceeding the Limits: Quantitative and Qualitative Excess

In the doctrine, exceeding the limits is generally examined under two main headings:

Exceeding the Limit in Terms of Time (Extensive Excess): This is the case where the defense is made before the attack begins or after the attack has ended. For example, continuing to shoot after the attacker has been neutralized. In Turkish legal practice, actions taken after the attack has ended are generally not evaluated within the scope of legitimate self-defense, and unjust provocation provisions are applied. However, the continuation of defense may be accepted as legitimate in cases where the “repetition of the attack is certain.”
Exceeding the Limit in Terms of Measure/Tool (Intensive Excess): This is when the perpetrator gives a heavy reaction beyond what is necessary to repel the attack while the attack continues. For example, shooting a person in a vital area with a firearm when they are trying to slap. This is the main area of application for TCK Art. 27.

In the decisions of the Court of Cassation, when analyzing the exceeding of the limit, objective and subjective criteria such as “the severity of the attack, the mood of the perpetrator, the place and time of the event, the nature of the tools used” are evaluated as a whole.

3. Types of Exceeding the Limits in the Systematics of the Turkish Penal Code

Article 27 of the TCK No. 5237 classifies exceeding the limits according to the fault status of the perpetrator and connects them to different legal consequences. Although this article draws a general framework not only for legitimate self-defense but for all grounds for justification, it regulates a specific “excuse” regarding legitimate self-defense in its second paragraph. It is possible to examine the cases of exceeding the limits in three main categories:

Exceeding the Limit Without Intent (Negligently) (TCK Art. 27/1)
Exceeding the Limit Due to Excusable Excitement, Fear, or Panic (TCK Art. 27/2)
Intentionally Exceeding the Limit (General Provisions)

The table below summarizes the fundamental differences and legal consequences of these three situations:

Type of Excess	Legal Basis	Fault Status of Perpetrator	Applicable Provision	Legal Consequence
Intentional Excess	General Provisions	Intent (or Probable Intent)	Intentional Killing/Injury	Full punishment (Provocation reduction possible)
Negligent Excess	TCK Art. 27/1	Negligence (inc. Conscious Negligence)	Negligent Killing/Injury	Punishment given + 1/6 to 1/3 reduction
Fear/Panic Excess	TCK Art. 27/2	Culpability is Removed	No Grounds for Punishment	No punishment (Not Acquittal)

3.1. Exceeding the Limit Without Intent (Negligently) (TCK Art. 27/1)

The provision of TCK Art. 27/1 is as follows: “In cases where the limit in causes removing criminal liability is exceeded without intent, if the act is punishable when committed by negligence, the punishment written in the law for the negligent crime is reduced by one-sixth to one-third.”

This paragraph regulates the situation where the perpetrator exceeds the limits of the ground for justification (e.g., legitimate self-defense) not knowingly and willingly, but as a result of carelessness, imprudence, or violation of the duty of care. The perpetrator wants to repel the attack but misses the measure due to a mere judgment error or clumsiness without getting excited.

3.1.1. Application Conditions and Scope

For this provision to be applied, legitimate self-defense conditions must first exist. The attack must be unjust, and the defense must be mandatory. Exceeding the limit must occur “without intent.” According to the Assembly of Criminal Chambers of the Court of Cassation and the doctrine, “negligence” here can be simple negligence in TCK Art. 22/2 or conscious negligence in Art. 22/3. The important thing is that the perpetrator did not “target” exceeding the limit.

For example, a person who wants to shoot at the ground to scare an attacker but shoots the attacker in the leg due to inexperience or carelessness can be considered to have exceeded the limit of legitimate self-defense negligently. In this case, the perpetrator will be held responsible for negligent injury, not intentional injury.

3.1.2. Punishability Condition: Existence of Negligent Crime

The most critical element of TCK Art. 27/1 is the necessity that the act committed by exceeding the limit is a crime “punishable even when committed negligently.” In the Turkish Penal Code, crimes are committed intentionally as a rule; for acts committed negligently to be punished, there must be an explicit provision in the law.

In this context;

If death occurs as a result of exceeding the limit (Negligent Killing, TCK Art. 85) or injury occurs (Negligent Injury, TCK Art. 89), the perpetrator is punished.
However, if crimes such as “damage to property,” “insult,” or “deprivation of liberty,” whose negligent forms are not regulated, are committed as a result of exceeding the limit, it is not possible to punish the perpetrator. For example, a person who damages the attacker’s car during legitimate self-defense will not receive punishment even if exceeding the limit was negligent, since the negligent form of damage to property is not a crime.

3.1.3. Sentence Reduction Rates and Calculation

After the perpetrator’s action is evaluated within the scope of a negligent crime, a further sentence reduction is made pursuant to TCK Art. 27/1. The legislator has envisaged that the punishment be reduced “from one-sixth to one-third,” considering the difficult situation the perpetrator is in.

For example, for a perpetrator who causes death by negligently exceeding the limit in legitimate self-defense, the court process will operate as follows:

The perpetrator’s act is characterized not as “Intentional Killing” (Life Imprisonment) but as “Negligent Killing” (2-6 years imprisonment).
The court determines the base sentence (e.g., 3 years) due to negligent killing.
A reduction of 1/6 to 1/3 is made on this sentence pursuant to TCK Art. 27/1. (With a 1/3 reduction on 3 years, the sentence drops to 2 years).
Other reduction reasons (good conduct, etc.) are applied if any.

This system aims not to leave the perpetrator completely unpunished due to careless behavior while protecting them from the consequences of serious crimes committed intentionally.

3.2. Exceeding the Limit Due to Excusable Excitement, Fear, or Panic (TCK Art. 27/2)

TCK Art. 27/2 is the most important point where the institution of legitimate self-defense intersects with human psychology: “If the limit is exceeded in legitimate self-defense due to excusable excitement, fear, or panic, no punishment shall be given to the perpetrator.”

Unlike TCK Art. 27/1, this regulation is specific only to the state of legitimate self-defense and does not apply to other grounds for justification (e.g., state of necessity). Furthermore, this paragraph is not a “sentence reduction” but a complete cause for “impunity.” The legal nature here is an “excuse ground eliminating culpability.” The perpetrator’s act continues to be unlawful, typicity has occurred, but due to the heavy psychological pressure on the perpetrator’s will, they cannot be expected to act in accordance with the law (condemnability is eliminated).

3.2.1. Psychological Analysis of Excitement, Fear, and Panic (Asthenic Effects)

This regulation, influenced by the German Criminal Law doctrine, considers exceeding the limit with “asthenic emotions” (weakness, fear, confusion) as an excuse. It is a requirement of human nature that a person cannot maintain their composure, panics, and loses control in the face of an attack. The Assembly of Criminal Chambers of the Court of Cassation accepts the situation where “the defendant gets excited, panics, and even fears due to the psychological state they fell into with the effect of the attack they were subjected to” as a reaction in accordance with the ordinary flow of life.

The critical issue here is that the source of these emotions is the attack itself. Acting with feelings of hostility or grudge coming from before, independent of the attack, does not fall within the scope of this article. Fear must be proportional to the severity and sudden development of the attack.

3.2.2. “Excusability” Criterion

The legislator has based it on fear that is of an “excusable” nature, not every kind of fear. This concept is a normative criterion left to the discretion of the judge. When evaluating excusability, the following points are taken into account:

Severity of the Attack: The heavier and more vital the attack, the higher the probability that the fear will be seen as excusable.
Time and Place: In attacks occurring at night, in a desolate place, in an environment where it is impossible to call for help, the level of fear is accepted to be higher.
Personal Characteristics of the Perpetrator: The physical strength, age, gender, and past traumas (e.g., battered woman syndrome) of the perpetrator affect the intensity of fear.

3.2.3. Legal Consequence: Decision of No Grounds for Punishment

In case of application of TCK Art. 27/2, the court does not give an “acquittal” decision. Because acquittal means that the act does not constitute a crime or was not committed by the perpetrator. Whereas here the act constitutes a crime (is unlawful), but the perpetrator is not culpable. Therefore, pursuant to CMK Art. 223/3-c, it is decided that “there is no ground for punishment.” This distinction is important in terms of legal technique as well as potentially having consequences in terms of compensation law.

3.3. Intentionally Exceeding the Limit

Intentionally exceeding the limit is not an “excess of limit” within the scope of TCK Art. 27, but actually the intentional commission of the crime. If the perpetrator exceeds the limits with the aim of harming the attacker, knowing that it is not mandatory to repel the attack, the will of legitimate self-defense can no longer be mentioned. The perpetrator’s aim is not “to protect” but “to harm” or “to punish.”

For example, if a person who neutralizes the attacker and takes their weapon kills the attacker while they are lying on the ground saying “you will pay for attacking me,” this is intentionally exceeding the limit. In this case, the perpetrator is tried with full punishment for intentional killing (TCK Art. 81). However, unjust provocation reduction (TCK Art. 29) may be applied according to the way the event occurred.

4. Comparative Analysis: Relationship Between Exceeding the Limit, Error, and Unjust Provocation

The institution of exceeding the limits of legitimate self-defense is frequently confused with TCK Art. 30 (Error) and TCK Art. 29 (Unjust Provocation) in practice. Since the correct legal characterization radically changes the type and amount of punishment the perpetrator will receive, determining the fine lines between these institutions is of vital importance.

4.1. Exceeding the Limit of Legitimate Self-Defense and Error (TCK Art. 30)

TCK Art. 30/3 contains the provision: “A person who falls into an unavoidable error regarding the realization of the conditions belonging to causes removing or reducing criminal liability shall benefit from this error.” This situation is called “Putative (So-called) Legitimate Self-Defense” in the doctrine.

Fundamental Difference: Error (TCK 30) refers to a mistake in the existence of the material conditions of the ground for justification. That is, there is actually no attack, but the perpetrator thinks there is an attack. Exceeding the limit (TCK 27) means the attack really exists, but the perpetrator misses the measure in the defensive reaction.
“Squirrel Decision” and Court of Cassation Jurisprudence: The decision known as the “Squirrel Decision” of the Assembly of Criminal Chambers of the Court of Cassation clarified this distinction. In the incident, the perpetrator fired towards the direction of sound “thinking it was a squirrel” and shot a human. This event is within the scope of “error in target” or “error in element.” However, in another example, if the perpetrator shoots someone running towards them in the dark thinking they are an attacker, this is “error in legitimate self-defense” (TCK 30/3). If the perpetrator fires their weapon excessively out of fear against a person who is really attacking them, this is “exceeding the limit in legitimate self-defense” (TCK 27).
Academic Views: Although some authors in the doctrine argue that exceeding the limit is actually a type of “error in limit” and can be evaluated within the scope of error in material conditions, the Court of Cassation and the legislator have accepted TCK 27 as a special regulation.

Table 2: Comparison of Error in Legitimate Self-Defense and Exceeding the Limit

Feature	TCK Art. 30/3 (Error)	TCK Art. 27 (Exceeding the Limit)
Existence of Attack	Attack DOES NOT EXIST (Thought to exist)	Attack EXISTS (Real)
Perpetrator’s Mistake	Mistake in perceiving the situation	Mistake/Excess in the measure of reaction
Area of Application	Putative (So-called) Defense	Real Defense
Legal Consequence	Not considered intentional (Negligence reserved)	Negligent punishment (27/1) or No punishment (27/2)

4.2. Exceeding the Limit and Unjust Provocation (TCK Art. 29)

Unjust provocation envisages a reduction in the punishment of a person who commits a crime under the effect of anger or severe grief caused by an unjust act.

Difference in Purpose: In legitimate self-defense, the perpetrator’s purpose is “to protect” and “to repel the attack.” In unjust provocation, the perpetrator’s purpose is “to react,” “to vent anger,” or “to harm.”
Emotional State: While TCK 27/2 uses the concepts of “excitement, fear, and panic” (asthenic emotions); unjust provocation relies on concepts of “anger and grief” (sthenic/strong emotions). Fear triggers the defense reflex, while anger triggers aggression.
Timing: Legitimate self-defense is only possible while the attack is continuing or its repetition is certain. Actions taken after the attack has ended can no longer be defense, but may benefit from unjust provocation reduction if conditions are met. The Court of Cassation views the perpetrator continuing the action after the attacker is neutralized as “satisfaction of the feeling of grudge” and applies TCK 29 (provocation) provisions instead of TCK 27.

5. Special Situations and Deepening Discussions in Court of Cassation Jurisprudence

Beyond doctrinal discussions, the institution of exceeding the limits of legitimate self-defense is shaped by human stories and tragedies emerging in concrete events. Decisions regarding women who are victims of domestic violence and police officers on duty reveal the sociological dimension of the law.

5.1. Battered Woman Syndrome and TCK 27/2

The most striking and conscientious dimension in exceeding the limit of legitimate self-defense is the situation of women exposed to systematic domestic violence. This situation, known as “Battered Woman Syndrome” in Anglo-American law, refers to the woman acting with the fear that the attack will happen at any moment (e.g., while the husband is sleeping) even if it has not actually started at that moment, because she lives in a constant cycle of violence.

Although this concept is not explicitly included in the law in Turkish law, it has started to be evaluated within the scope of TCK Art. 27/2 with the decisions of the Court of Cassation. The decision of the 1st Criminal Chamber of the Court of Cassation numbered 2011/1267 (Banu Decision) is the symbol of this transformation. In the incident, the defendant Banu, who had been sexually harassed by her father since childhood, forced into incest, impregnated, and lived under constant death threats, killed her father. The local court punished the defendant, but the Court of Cassation overturned the decision by considering the “spiral of constant fear, helplessness, and violence” the defendant was in.

In this decision, the Court of Cassation focused on the existence of an attack chain whose “repetition is certain” rather than whether the attack was actually present at that moment. The victim’s psychology was impaired due to trauma spanning years, and she exceeded the limits of legitimate self-defense (especially in terms of time) with “an excusable fear and panic.” This approach is revolutionary in showing that the law needs to look at the process in the background of the event, not just the moment of the event.

5.2. Use of Weapons by Law Enforcement and Exceeding the Limit

The authority of law enforcement officers (police, gendarmerie) to use weapons is specially regulated by the Law on Police Duties and Powers (PVSK) Art. 16. However, police officers also have the right to legitimate self-defense as individuals within the scope of TCK Art. 25. The problem is to what extent professionals who carry weapons due to their duty and receive training in this regard can benefit from the “excitement, fear, and panic” excuse.

In the decisions of the Assembly of Criminal Chambers of the Court of Cassation, it is meticulously examined whether the police exceeded the limits while shooting at a suspect who did not obey the stop warning and fled. If the police panic and exceed the limits in the face of an attack directed at them (drawing a weapon, etc.), TCK 27/2 can be applied. However, if they open fire without aiming and kill the suspect solely to catch a fleeing suspect while there is no attack against them, TCK 27/1 (negligently exceeding the limit) or probable intent provisions are applied since “professional inexperience” or “conscious negligence” would be in question here rather than “fear and panic.” The Court of Cassation keeps the standard of composure expected from trained personnel higher than that of an ordinary citizen.

5.3. The Limit Problem in Attacks Against Property (Theft)

One of the most common scenarios encountered in society is the intervention of the homeowner against a thief entering the house. TCK Art. 25 states that legitimate self-defense can be made against an attack directed at “any kind of right,” so property protection is also legitimate. However, the principle of “proportionality” conflicts here: Can the attacker’s right to life be terminated to repel an attack against property?

According to the established jurisprudence of the Court of Cassation, it is possible to use weapons against someone entering a house for theft, but this use must be proportional. If the thief starts to run upon seeing the homeowner, the attack is considered to have ended. Killing the fleeing thief by shooting from behind is evaluated not as legitimate self-defense, but as intentional killing (under unjust provocation). However, if the thief reaches into their pocket in the dark, acts as if they have a weapon, or walks towards the homeowner, the homeowner shooting with “fear and panic” can be evaluated within the scope of TCK 27/2 and a decision of no ground for punishment can be given. Here, elements of “nighttime” and “immunity of residence” are factors strengthening the excuse, not mitigating the fear.

6. Trial Procedure and Execution Regime in Case of Exceeding the Limit

Claims of exceeding the limits of legitimate self-defense present specific features in terms of the law of evidence and type of verdict in the criminal procedure process.

6.1. Burden of Proof and Principle of In Dubio Pro Reo

If doubt arises regarding the existence of legitimate self-defense conditions or the state of exceeding the limit, interpretation is made in favor of the defendant pursuant to the principle of “benefit of the doubt” (in dubio pro reo). In cases where the defendant is the only witness to the event and other evidence is insufficient, the Court of Cassation tends to credit the defendant’s defense that they “were attacked and acted with fear.” However, this defense must not contradict physical evidence (autopsy report, shooting distance, entry-exit holes). For example, finding that the defendant who says “he attacked me” shot the victim in the back is the strongest evidence refuting the defense.

6.2. Verdict Types and Effect on Criminal Record

As mentioned in the previous sections of the report, TCK 27/1 and 27/2 give rise to different types of verdicts.

TCK 27/1 Verdict: The court convicts the defendant of “Negligent Killing/Injury.” They receive a sentence. This decision is recorded in the criminal record. However, since the sentence is reduced by 1/6 to 1/3, the resulting sentence may generally fall below imprisonment limits or be converted into a fine (TCK Art. 50).
TCK 27/2 Verdict: The court decides that “There is No Ground for Punishment” (CMK 223/3-c). This decision is technically not a conviction. The defendant does not go to prison. It does not appear as a crime in the criminal record (criminal conviction record), but may appear in the judicial record archives as the result of the case. Security measures (e.g., confiscation) may be applied regarding this person because the act is unlawful.

7. Conclusion and Evaluation

The institution of exceeding the limits of legitimate self-defense regulated in Article 27 of the Turkish Penal Code is the most refined form of the “fault” principle of criminal law. With this regulation, the legislator has recognized the weakness, fears, and reflexive reactions of human nature against sudden dangers within the legal order. Instead of expecting “robotic composure,” it has based itself on “human reaction.”

The main conclusions to be drawn from this comprehensive review are:

Determination of the Limit is Subjective: Whether the limit of legitimate self-defense has been exceeded should be evaluated not with mathematical formulas, but within the specific conditions of each concrete event (mood of the perpetrator, nature of the attack, environment). Jurisprudence of the Court of Cassation such as the “Squirrel Decision” and “Banu Decision” draw the boundaries of this subjective evaluation.
Necessity of Psychological Analysis: The application of TCK 27/2 necessitates legal practitioners to consult the science of psychology. “Excusable fear” is a psychological concept as much as a legal one. Especially in domestic violence cases, taking phenomena such as “Battered Woman Syndrome” into account in the trial is not a favor but a necessity for the manifestation of justice.
Balance of Penal Policy: The distinction between TCK 27/1 and 27/2 ensures the balance of criminal justice. While punishing carelessness (negligence) (by mitigating), it leaves involuntary fear (excuse) unpunished. This system neither completely ignores the right of the attacker nor victimizes the defender.

In conclusion, exceeding the limits of legitimate self-defense is not just a law article application, but an area where the human dimension and conscientious balance of the law are tested. It is essential for a fair trial that law practitioners observe the spirit of the law and the human reality of the concrete event without being stuck in the wording of the norm while applying this institution.

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