摘要:The purpose of this article is to analyze the complexity of decision-making and the judgment of military policemen of the 26th Minas Gerais Police Battalion, using their discretionary police power during the action of a police approach. In this way, the general objective will be to highlight the variables and factors associated with this “power”, through observations and self-confrontations in the field, making use of the Ergonomic Analysis of Work. The whole text will analyze the following problem: how are decisions made in a police approach? What has been realized is that a large part of the decisions and judgments are based on skills resulting from the appropriate coupling of the agent's experiences with the situation found. The key point of the skill are the experiences accumulated in different situations. Therefore, all detection skills are relative; it depends on the context and on the suspect.