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This paper presents the techno-typological study of seven bone projectile points closely associated with a burial assemblage excavated from El Alto 5 (~550 cal BP, Sierras of Córdoba, Argentina). The bone points provide a comparative model for interpreting the function of arrow points, primarily concerning how archaeologists can accurately differentiate the arrow tips used for warfare or hunting. Bone points have barbed shoulders to resist removal from the wound and serrated stems for secure hafting. They required shafts a few millimeters thicker than stone-tipped arrows for hafting, involving more kinetic energy to inflict severe injuries. Identifying a dark residue spattered over the blades opens the possibility that poison was applied to enhance the effectiveness of the shoot. The study is considered a starting point to build more accurate models to identify interpersonal violence during the Late Prehispanic Period, where most bone points occurred as domestic refuse of campsites. [ABSTRACT FROM AUTHOR]