In the early twentieth century, different discourses circulated in Buenos Aires expressing concern about the issue of order. In the magazine Archivos (Archives), several opinions were expressed about this problem based on heterogeneous spaces, among them, the police, penitentiaries, and the judicial system. This article centers on the issue of the "low life," particularly the medical-police practices that emerged with the Buenos Aires's Service for Observing the Alienated (1902-1913). "Low life" is understood as behavior considered dangerous and immoral, between the criminal and the insane. [ABSTRACT FROM AUTHOR]