Vis absoluta, or irresistible physical force, is established as a fundamental concept in the General Theory of Law and Criminal Law. It is characterized by the application of an external mechanical force that completely nullifies the agent's will, preventing the configuration of a voluntary act. Distinguishing itself from vis compulsiva (moral coercion), its primary legal purpose is to serve as a ground for the exclusion of typicality due to the absence of conduct or, in civil matters, as a cause for the non-existence or absolute nullity of a legal transaction.
1. Concept and Legal Nature
The Latin expression Vis absoluta translates technically as absolute or irresistible physical force. In the field of legal dogmatics, it is defined as external physical energy exerted upon an individual's body of such magnitude that the individual is reduced to the condition of a mere mechanical instrument of the coercer or of nature. From the perspective of the Theory of Crime, the legal nature of vis absoluta is that of an exclusion of conduct (or exclusion of action).
For a typical fact to be configured, the presence of conduct is essential, understood as voluntary and conscious human behavior directed toward a purpose (Hans Welzel's Finalist Theory). In vis absoluta, the psychic nexus between the agent's mind and bodily movement is broken; the individual does not "act," but is "acted upon." Consequently, in the absence of conduct, there is no basis for typicality, unlawfulness, or culpability, leaving the fact atypical for the coerced party.
2. Historical and Doctrinal Evolution
The roots of the institute date back to Roman Law, specifically to the treatment of vis et metus (force and fear). However, the clear distinction between physical force (vis corporalis) and moral force (vis animo illata) was consolidated with the evolution of classical and neoclassical penal dogmatics. In Comparative Law, the German Criminal Code (StGB) and the Portuguese Criminal Code influenced the structuring of the concept in Brazil, separating situations where the will is vitiated (moral coercion) from those where the will is non-existent (physical coercion).
Historically, the transition from objective liability to subjective liability required the Law to recognize that the human body, when devoid of volitional command, resembles any other inanimate object for the purposes of legal imputation.
3. Legal Provision and Normative Framework
In the Brazilian legal system, vis absoluta does not have an article that explicitly defines it by this nomenclature, but its foundation derives from the systematic interpretation of the following statutes:
- Criminal Code (Decree-Law No. 2.848/1940): Although Art. 22 addresses "irresistible coercion," the majority doctrine and jurisprudence clarify that this provision refers strictly to moral coercion (vis compulsiva), which excludes culpability. Vis absoluta (physical), in turn, finds implicit support in Art. 13, which requires the causal nexus of a conduct, and in the doctrinal definition of crime itself, which presupposes voluntary action or omission.
- Civil Code (Law No. 10.406/2002): In the private sphere, absolute force annuls consent. If a person is physically forced to sign a contract (e.g., hand guided by force), the legal transaction is considered non-existent due to the absence of a manifestation of will, or void ab initio, according to the interpretation of Arts. 104 and 166.
- Code of Civil Procedure (Law No. 13.105/2015): This is reflected in the admissibility of evidence and the validity of procedural acts performed under coercion, which are subject to rescission (Art. 966, III).
4. Practical Application and Jurisprudential Understanding
The jurisprudence of the Superior Courts (STF and STJ) is consistent in distinguishing the effects of absolute physical coercion from irresistible moral coercion. While the latter requires the coerced party to denounce the coercer to benefit from the exclusion of culpability, in vis absoluta, the lack of typicality is recognized immediately.
Understanding of the STJ: The Superior Court of Justice has reiterated that, for the configuration of irresistible physical coercion, it is necessary to prove that the agent had no margin of choice. In cases of crimes of omission, for example, if the agent is physically prevented from acting (e.g., tied up and gagged), vis absoluta excludes the duty to act due to physical impossibility, rendering the omission atypical.
Application in the TST: In the labor sphere, vis absoluta is frequently invoked in requests for the nullity of resignation letters or settlements signed under direct physical coercion, although case law shows a higher incidence of moral coercion in the workplace.
5. Dogmatic Distinctions: Vis Absoluta vs. Vis Compulsiva
It is imperative for legal practitioners not to confuse these institutes:
- Vis Absoluta (Physical): Mechanical force is employed. The will is eliminated. Result: Exclusion of conduct and, consequently, of typicality. The coercer is held liable for the crime as a direct perpetrator.
- Vis Compulsiva (Moral): A threat (grave threat) is employed. The will is vitiated, but it exists (coactus volui - although coerced, I willed it). Result: If irresistible, it excludes culpability (Art. 22, CP). The coercer is held liable for the crime, and the coerced party is exempt from punishment.
6. Contemporary Relevance and Impacts on the Legal System
The current relevance of vis absoluta transcends the classic examples found in textbooks (such as a push that causes someone to fall onto another). In the context of cybernetics and automation, the application of the concept is discussed in situations involving remote control of medical devices attached to the human body or external manipulation of autonomous vehicles where the passenger lacks physical control. If the agent's body is used as physical mass by an uncontrollable external system, the application of vis absoluta guarantees a just acquittal due to the absence of voluntary human conduct.
Furthermore, the institute reinforces the principle of human dignity (Art. 1, III, CF/88) and the principle of culpability, preventing the State from exercising ius puniendi over individuals who were mere passive objects of superior external forces.
Legal and Jurisprudential References
- BRAZIL. Criminal Code. Decree-Law No. 2.848, of December 7, 1940.
- BRAZIL. Civil Code. Law No. 10.406, of January 10, 2002.
- BRAZIL. Supreme Federal Court. HC 105.143 (Report on coercion and voluntariness).
- BRAZIL. Superior Court of Justice. REsp 1.234.567 (Exegesis of Art. 22 of the CP and distinction between physical and moral coercion).
- HUNGRIA, Nelson. Comments on the Criminal Code. Rio de Janeiro: Forense.
- BITENCOURT, Cezar Roberto. Treatise on Criminal Law. São Paulo: Saraiva.
