Examinando por Autor "Pastor Matías, Hannz Alexis"

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    Microscopic characterization of garment textile openings in the investigation of crimes against life, body and health
    (Universidad Privada Norbert Wiener, 2021-12-09) Pastor Matías, Hannz Alexis; Verástegui Ramírez, Ibeth María; Ascarza Gallegos, Justo Angelo
    The objective of the study was to characterize holes found in textile openings using optical microscopy. The fabric type was considered. These fabrics were perforated according to the type of damage that could be inflicted on the textile (cut, tear, and burn). The created hole was placed on a slide with a fixative. Observations were made using 40x and 100x objectives. The characteristics of each sample were recorded in a validated instrument for documentation purposes. It was determined that for cuts, a serrated fiber finish was obtained in animal, vegetable, and synthetic fabrics, with a prevalence of 87%, 93%, and 93%, respectively, at 40x magnification; and 100% for all at 100x magnification. For tearing, the prevalence of an irregular finish was observed for animal, vegetable, and synthetic fibers at 80%, 87%, and 93%, respectively, at 40x magnification; and 100% for all at 100x. For burning, a fused finish was prevalent for all fabrics at both magnifications, with 100% at 40x and 100x. The conclusion is that microscopic characteristics help identify the mechanism that caused the damage to the fabric.