The Latin expression ad hoc designates, within the legal system, the appointment of an individual to perform a specific, temporary, and restricted function, filling a vacancy or a specific impediment. With transversal application in Procedural, Administrative, and International Law, the institute aims to ensure the continuity of jurisdictional services and the efficiency of public administration, operating as an exception mechanism to the permanent tenure of positions.
Concept and Foundation
The term ad hoc, literally translated as "for this" or "for this purpose," constitutes a legal category of an exceptional and transitory nature. Unlike ordinary appointments, which presuppose stability and general competence, the ad hoc designation is delimited by a precise functional scope and is temporally circumscribed. Legally, it is not to be confused with the tenure of a position, but rather with a precarious authorization for the performance of specific acts, based on the principles of efficiency (Art. 37, caput, of the Federal Constitution) and the non-denial of jurisdiction (Art. 5, XXXV, of the 1988 Constitution).
Historical Origin and Evolution
The genesis of the institute dates back to Roman Law, where the need to fill temporary absences of magistrates or representatives required formulas that would not alter the organic structure of the State. In comparative law, the concept was consolidated in international arbitration and diplomatic law, allowing for the appointment of ad hoc judges in international courts (such as the International Court of Justice), ensuring that parties without a judge of their nationality on the tribunal could appoint a magistrate for the adjudication of a specific dispute. In the Brazilian legal system, the figure was absorbed to facilitate the administration of justice and technical defense in urgent situations.
Legal Provision and Practical Application
The application of the institute is vast and finds support in several legal provisions:
- Criminal Procedural Law: Art. 265, § 2, of the Code of Criminal Procedure (CPP) provides for the figure of the ad hoc defense attorney when the appointed counsel abandons the case, ensuring due process of law and the right to a full defense.
- Administrative and Procedural Law: Law 8.906/94 (Statute of the Advocacy), in its Art. 26, regulates professional practice and the appointment of court-appointed or ad hoc defenders, reinforcing the essential nature of the function for the administration of justice.
- International Law: The Statute of the International Court of Justice provides for the appointment of ad hoc judges (Art. 31), ensuring equality of arms and representativeness in the adjudication of disputes between States.
Current Jurisprudential Understanding
Brazilian Superior Courts have consolidated the understanding that ad hoc performance is valid provided that the limits of the designation are respected. The Supreme Federal Court (STF), in several rulings regarding the appointment of defense attorneys, reinforces that the appointment of an ad hoc lawyer for a specific procedural act (such as an evidentiary hearing) does not violate the principle of full defense, provided there is no concrete prejudice to the defendant (STF Súmula 523). Within the scope of the Superior Labor Court (TST), jurisprudence admits the performance of ad hoc representatives, provided they are equipped with a specific letter of appointment, according to the interpretation of Súmula 377, which was made more flexible by the Labor Reform (Law 13.467/2017), making the requirement of an employment relationship optional.
Related Principles and Divergences
The institute exists in a dialectical tension with the principle of impersonality and the requirement of a public competitive examination (Art. 37, II, of the Constitution). The majority doctrine, led by authors such as Celso Antônio Bandeira de Mello, argues that the exceptional nature of ad hoc appointments must be interpreted restrictively to avoid the distortion of the filling of public positions. Divergences arise when ad hoc performance becomes continuous, which, according to jurisprudence, could constitute usurpation of public function or improper precariousness of professional practice.
Contemporary Relevance
The contemporary relevance of the term lies in the adaptation of the legal system to a scenario of high procedural demand. The figure of the lay judge or the ad hoc conciliator, encouraged by the 2015 Code of Civil Procedure (Arts. 165 et seq.), demonstrates that contemporary Law uses the ad hoc designation as a tool for conflict management and decongestion of the Judiciary. Technological evolution also imposes new debates on the validity of acts performed by ad hoc agents in digital environments, maintaining the need for rigor in the identification and delimitation of competencies.
Legal and Jurisprudential References
- BRAZIL. Constitution of the Federative Republic of Brazil of 1988.
- BRAZIL. Decree-Law No. 3.689, of October 3, 1941 (Code of Criminal Procedure).
- BRAZIL. Law No. 13.105, of March 16, 2015 (Code of Civil Procedure).
- BRAZIL. Law No. 8.906, of July 4, 1994 (Statute of the Advocacy and the OAB).
- BRAZIL. Supreme Federal Court. Súmula No. 523: "In criminal proceedings, the lack of defense constitutes absolute nullity, but its deficiency will only annul it if there is proof of prejudice to the defendant."
- BRAZIL. Superior Labor Court. Súmula No. 377: "Even if there is no employment relationship, the representative may be a person external to the company."
