The use of micro computed tomography to ascertain the morphology of bloodstains on fabric

被引：12

作者：

Dicken, L. ^{[1
]}

Knock, C. ^{[1
]}

Beckett, S. ^{[2
]}

de Castro, T. C. ^{[3
]}

Nickson, T. ^{[4
]}

Carr, D. J. ^{[1
]}

机构：

[1] Cranfield Univ, Def Acad United Kingdom, Ctr Def Engn, Shrivenham SN6 8LA, Wilts, England

[2] Cranfield Univ, Def Acad United Kingdom, Cranfield Forens Inst, Shrivenham SN6 8LA, Wilts, England

[3] Univ Otago, Sir John Walsh Res Inst, Dunedin 9054, New Zealand

[4] LGC Forens, Culham OX14 3ED, Oxon, England

来源：

FORENSIC SCIENCE INTERNATIONAL | 2015年 / 257卷

关键词：

Wicking; Wetting; Absorbent surfaces; STAINS;

D O I：

10.1016/j.forsciint.2015.10.006

中图分类号：

DF [法律]; D9 [法律]; R [医药、卫生];

学科分类号：

0301 ; 10 ;

摘要：

Very little is known about the interactions of blood and fabric and how bloodstains on fabric are formed. Whereas the blood stain size for non-absorbent surfaces depends on impact velocity, previous work has suggested that for fabrics the blood stain size is independent of impact velocity when the drop size is kept constant. Therefore, a greater understanding of the interaction of blood and fabric is required. This paper explores the possibility of using a micro computed tomography (CT) scanner to study bloodstain size and shape throughout fabrics. Two different fabrics were used: 100% cotton rib knit and 100% cotton bull drill. Bloodstains were created by dropping blood droplets from three heights; 500 mm, 1000 mm and 1500 mm. Results from the CT scanner clearly showed the bloodstain shape throughout the fabric. The blood was found to form a diamond shaped stain, with the maximum cross-sectional area 0.3-0.5 mm below the surface. The bloodstain morphology depended on both the impact velocity and fabric structure. (C) 2015 Elsevier Ireland Ltd. All rights reserved.

引用

页码：369 / 375

页数：7

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