Based on an ethnographic study of fingerprint and DNA evidence practices in the Swedish judicial system, this article analyzes the materialization of forensic evidence. It argues that forensic evidence, while popularly understood as firmly rooted in materiality, is inseparably technoscientific and cultural. Its roots in the material world are entangled threads of matter, technoscience, and culture that produce particular bodily constellations within and together with a particular sociocultural context. Forensic evidence, it argues further, is co-materialized with crimes as well as with particular bodily and social constellations. Consequently, the article suggests that an analysis of how forensic evidence is produced can contribute to feminist understandings of the inseparability of sex and gender: understanding bodies as ongoing technoscientific-materialcultural practices of materialization may be a fruitful approach to analysing their complexity, and the relationships in which they are placed, without surrendering to either cultural or biological determinism.