The principle of Lex loci, derived from the maxims lex loci celebrationis or lex loci delicti commissi, constitutes a fundamental pillar of Private International Law. It operates as a connecting factor for determining the applicable law to legal relationships with foreign elements, ensuring legal certainty and state sovereignty in the regulation of acts, contracts, or illicit acts occurring within a specific territory.
Concept and Foundation
The expression Lex loci (law of the place) translates to a connecting factor used to resolve conflicts of laws in space. Its legal nature is that of a super-law or conflict-of-laws rule, whose function is not to directly regulate the merits of the legal relationship, but to indicate which national legal system is competent to govern the effects of a specific fact, act, or legal transaction.
In the Brazilian system, the application of Lex loci manifests in various facets: lex loci celebrationis (law of the place of celebration of an act), lex loci executionis (law of the place of performance of an obligation), and lex loci delicti commissi (law of the place where the offense occurred). The essence of this rule lies in the presumption that the subjects of the legal relationship, when acting in a given territory, voluntarily submit themselves to the public order in force there.
Historical Origin and Evolution
The genesis of the principle dates back to the Italian Statutory School of the 14th century (Bartolus de Saxoferrato), which sought to systematize the application of statutory laws in a context of legal fragmentation. With the advent of the modern nation-state, the principle was consolidated as a mechanism for coordination between sovereignties. In Brazilian Law, the codification of the matter began with the Introduction to the Civil Code of 1916, being entirely succeeded by the current Law of Introduction to the Norms of Brazilian Law (LINDB - Decree-Law No. 4,657/1942).
Legal and Normative Provisions
The Brazilian legal system enshrines the principle of Lex loci explicitly in the LINDB:
- Art. 7, § 1: Establishes that a marriage celebrated abroad before competent authorities shall comply with the laws of the country in which it is performed (Lex loci celebrationis).
- Art. 9: Determines that, to qualify and govern obligations, the law of the country in which they are constituted shall apply. § 2 reinforces that an obligation resulting from a contract is deemed constituted in the place where the proposer resides.
- Art. 13: Establishes that, for public acts, the proof of facts occurring abroad is governed by the law of the place where they occur.
Practical Application and Jurisprudential Understanding
The Superior Court of Justice (STJ) has consolidated the application of Lex loci, especially in the recognition of foreign judgments and international contractual disputes. In cases of non-contractual civil liability, national jurisprudence has mitigated the rigidity of lex loci delicti commissi when the damage produces effects in the national territory, sometimes applying the law most favorable to the victim or the law of the parties' habitual residence, in line with the contemporary trend of protecting the weaker party.
In the labor sphere, the Superior Labor Court (TST) maintains the application of the principle of territoriality (lex loci laboris), pursuant to Art. 651 of the CLT, understanding that, as a rule, the law of the place of service provision governs the contract, except for cases of extraterritoriality provided for in special laws (e.g., Law No. 7,064/1982, which provides for the situation of workers hired in Brazil to work abroad).
Related Principles and Doctrinal Divergences
The contemporary debate revolves around the tension between Lex loci and Lex voluntatis (party autonomy). While classical doctrine defended the rigidity of the location as a factor of stability, modern doctrine, influenced by European Private International Law, defends the primacy of the parties' choice (party autonomy) in international contracts, provided it does not violate public order or mandatory rules of the forum state.
Contemporary Relevance
The globalization of economic relations requires a dynamic interpretation of Lex loci. In digital environments and transnational adhesion contracts, determining the "place" becomes complex. The Brazilian Judiciary faces the challenge of adapting the concept of "place of constitution of the obligation" to the virtual environment, where the physical location of servers or parties does not always coincide with the actual execution of the legal transaction. The application of this institute remains, therefore, the safeguard against legal uncertainty in the transnationality of human and commercial relations.
Legal and Jurisprudential References
- Brazil. Decree-Law No. 4,657, of September 4, 1942. Law of Introduction to the Norms of Brazilian Law.
- Brazil. Decree-Law No. 5,452, of May 1, 1943. Consolidation of Labor Laws (CLT).
- Brazil. Law No. 7,064, of December 9, 1982. Provides for the situation of workers hired in Brazil to work abroad.
- STJ, SEC 12.845/EX, Rapporteur Min. Nancy Andrighi, Special Court, judged in 2021 (Application of foreign norms in international contracts).
- TST, RR-1000632-45.2017.5.02.0000, 3rd Panel, Rapporteur Min. Alberto Bastos Balazeiro, judged in 2022 (Territoriality and international employment contract).
