The Latin term nec clam (not clandestinely) designates one of the essential negative requirements for the characterization of fair possession and ad usucapionem possession in Brazilian Civil Law. Inserted within the scope of Property Law, the principle establishes that possession, in order to produce acquisitive or defensive legal effects, must be exercised in a public and ostensible manner, allowing the holder of the property right to be aware of the occupation and to exercise their right of recovery.
1. Concept, Definition, and Legal Nature
The expression nec clam constitutes the negation of clandestinity (clam). In the national legal system, possession is classified under the prism of its fairness or unfairness. According to the exegesis of Article 1,200 of the 2002 Civil Code, fair possession is that which is not violent (nec vi), clandestine (nec clam), or precarious (nec precario).
The legal nature of nec clam is that of a prerequisite for the effectiveness of possession for the purposes of usucapio (adverse possession) and full possessory protection. It is a relative defect, as clandestinity is configured by the concealment of the exercise of fact over the thing in relation to the one who has an interest in recovering it. Publicity, the antithesis of clandestinity, is the element that allows for the counting of the acquisitive prescription period, since the inert owner, faced with public possession, tacitly abdicates their right by not exercising the due opposition.
2. Historical Evolution and Comparative Law
The triad nec vi, nec clam, nec precario dates back to Roman Law, specifically to possessory interdicts (interdictum uti possidetis and utrubi). The Roman praetor granted protection only to possession that was acquired clearly before the adversary. In classical Roman Law, clandestine possession was that obtained secretly (furtive), preventing the dispossessed party from becoming aware of the loss of physical availability of the asset.
In Comparative Law, the 1804 French Civil Code (Napoleonic Code) and the German Civil Code (BGB) maintain the requirement of publicity. In the Germanic system, possession is viscerally linked to Gewere (investiture), which presupposes social externalization. Brazilian Law, heir to the Luso-Roman tradition, consolidated the principle in the 1916 Civil Code and maintained it entirely in the 2002 codification, reinforcing the social function of property and the need for transparency in possessory acts.
3. Legal Provision and Normative Framework
The primary normative foundation of nec clam is found in the 2002 Civil Code (Law No. 10,406/2002):
- Art. 1,200: "Possession is fair if it is not violent, clandestine, or precarious."
- Art. 1,208: "Acts of mere permission or tolerance do not induce possession, nor do violent or clandestine acts authorize its acquisition, except after the violence or clandestinity has ceased."
The joint interpretation of these provisions reveals that clandestinity is a temporary impediment to the acquisition of legal possession. As long as the possessor acts secretly, they hold only a factual situation devoid of interdictal protection against the legitimate owner and incapable of generating usucapio.
4. Practical Application and Jurisprudential Understanding
The jurisprudence of the Superior Courts, notably the Superior Court of Justice (STJ), has consolidated the understanding that clandestine possession transforms into fair possession the moment it becomes public or when the owner becomes aware of it. This phenomenon is called "interversion of possession" or "convalescence."
In the STJ, the thesis prevails that possession initiated clandestinely cannot be counted for usucapio while the defect persists. However, once the concealment ceases, the prescription period begins (ex nunc). Recent decisions reinforce that publicity must be assessed in concreto, observing whether the possessor behaves socially as if they were the owner (animus domini), carrying out improvements, paying taxes, or establishing a residence—acts which, by nature, are incompatible with clam.
Within the scope of the TST (Superior Labor Court), the discussion on nec clam possession arises tangentially in third-party embargoes, where the publicity of the occupation of properties by workers or entities is used as proof of good faith and factual exercise to prevent attachments resulting from labor executions against the registered owner.
5. Related Principles and Doctrinal Divergences
The nec clam principle dialogues directly with the Principle of Objective Good Faith (Art. 422, CC) and the Principle of Publicity. Scholars such as Francisco Eduardo Loureiro and Pontes de Miranda highlight that clandestinity is a relative defect (ex parte adversantis), meaning that possession may be public to the general community but clandestine to the owner if the possessor deliberately hides the occupation from them.
There is doctrinal disagreement regarding the exact moment of the cessation of clandestinity. The subjectivist school argues that clandestinity ceases when the owner effectively knows of the possession. The objectivist school, which is the majority in jurisprudence, maintains that the defect ceases when the possession becomes capable of being known through normal diligence by the right holder, regardless of their actual knowledge.
6. Contemporary Relevance and Practical Impacts
In contemporary times, the nec clam requirement assumes a central role in actions for repossession and in the extrajudicial recognition of usucapio (Art. 216-A of the Public Records Law). In a scenario of increasing urbanization and agrarian conflicts, the distinction between furtive occupation and ostensible possession defines the success or failure of acquisitive claims.
The application of nec clam is also vital in the analysis of the social function of property. Public and transparent possession is that which fulfills the social function, as it allows for social control and the legal reaction of the owner. The legal system does not protect those who evade public scrutiny to consolidate a factual situation, prioritizing legal certainty and ethics in private relations.
Legal and Jurisprudential References
- BRAZIL. Law No. 10,406, of January 10, 2002. Civil Code.
- BRAZIL. Superior Court of Justice. REsp 1,631,859/SP. Rel. Min. Nancy Andrighi. (Addresses the cessation of clandestinity and the start of the usucapio period).
- BRAZIL. Superior Court of Justice. AgInt in AREsp 1,456,321/GO. (Analysis of acts of mere tolerance and absence of public possession).
- FARIAS, Cristiano Chaves de; ROSENVALD, Nelson. Course on Civil Law: Property Rights. Salvador: JusPodivm, 2024.
- PONTES DE MIRANDA, Francisco Cavalcanti. Treatise on Private Law. Volume X. Rio de Janeiro: Borsoi.
