期刊
JOURNAL OF FORENSIC SCIENCES
卷 64, 期 3, 页码 702-710出版社
WILEY
DOI: 10.1111/1556-4029.13951
关键词
forensic science; impact spatter; bloodstain pattern analysis; textiles; rattrap; porcine blood
There are few reports of studies of impact spatter on textiles even though bloodstained textiles are found at many violent scenes. Impact spatter was deposited at 90 degrees impact angle onto three knit fabrics of different yarn sizes and on paper. The resulting stain areas and number of stains were measured using ImageJ and compared with stains on paper using one-factor ANOVA. The number of stains observed and their areas on the knit fabrics decreased as the yarn size increased. It was also found that blood that deposited on the fabric wicked only in the direction of the fibers at that location within the fabric which led to distorted stain shapes. Fewer observed impact spatter stains were found on cotton jersey knits for fabrics made with larger yarns than on paper. As the yarn size became smaller, the number of stains became the same as on paper.
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