Rol Indicio Inferencia Razonable Autoría Participación: Tensiones Entre Eficacia Penal y Presunción Inocencia

Abstract

This paper critically analyzes the role of circumstantial evidence in the Colombian criminal process, with particular emphasis on the tensions that arise between its usefulness in reconstructing events and the need to safeguard the presumption of innocence as a fundamental guarantee of due process. From a legal-constitutional perspective, the logical structure of circumstantial evidence—base facts, inferential link, and circumstantial fact—is examined, and the risks that arise when these elements are not properly established, explained, and justified in judicial decisions are highlighted.

The study identifies that one of the main problems in judicial practice lies in the overvaluation of isolated or ambiguous circumstantial evidence, as well as in the construction of inferences that do not rule out alternative hypotheses compatible with innocence. These shortcomings can lead to decisions that seriously affect fundamental rights, based on speculative or insufficiently justified reasoning. In this regard, it is emphasized that circumstantial evidence, by its indirect nature, requires reinforced standards of motivation, rationality, and argumentative control to prevent it from becoming a mechanism for unduly relaxing the State's burden of proof.

Likewise, it is underscored that the legitimate use of circumstantial evidence is conditioned on strict respect for procedural guarantees, especially the legality of the evidence serving as the basis for the facts, the right to challenge and defend oneself, and the duty to comprehensively assess the body of evidence. Circumstantial inference cannot operate in isolation nor replace the need for a complete evidentiary judgment; rather, it must be integrated within a systematic, transparent, and verifiable analysis.

Finally, this work proposes guidelines for a more rigorous and rights-based use of circumstantial evidence, aimed at strengthening the protection of the presumption of innocence. Among these parameters are the requirement of explicit and logical justification, the joint evaluation of circumstantial evidence with other evidence, the exclusion of evidence derived from illicit sources, and specialized training for judicial officers in evidentiary reasoning. It is concluded that only under these parameters can circumstantial evidence fulfill a legitimate function within the criminal process, contributing to the search for truth without compromising the structural principles of a social and democratic state governed by the rule of law.