A palavra do policial: Análise crítica do valor probatório e sua influência na verdade jurídica

This study critically examines the evidentiary value attributed to police testimony in Brazilian criminal proceedings, focusing on the influence of such testimony in constructing legal truth. The police’s word, often used as the primary or sole evidence, raises questions about the impartiality and presumption of truthfulness granted to these statements. In this regard, the research aims to determine to what extent police testimony alone suffices to substantiate convictions, addressing the issue of partiality and the risks of decisions being based on a single state narrative. A qualitative and exploratory methodology was adopted, supported by doctrinal review, jurisprudential analysis, and practical case studies to understand the nuances and challenges surrounding the use of police testimony as evidence in Brazilian criminal law. It was found that although police testimony holds value within the evidentiary context, it should be corroborated by other evidence to ensure fair judgments and avoid convictions based solely on state agents' statements. The study proposes a careful analysis of this type of evidence, emphasizing the need for a criminal justice system rooted in principles of impartiality, the adversarial process, and ample defense, alongside a critical approach to the evidentiary weight of police testimony. Additionally, it is suggested that practices such as the use of body cameras may serve as a mechanism for added control and validation, strengthening the construction of a more balanced legal truth.