Investigation of a Model for Stain Selection in Bloodstain Pattern Analysis

Illes, Mike; Boués, M.

doi:10.1080/00085030.2011.10768137

Cited by 27 publications

(26 citation statements)

References 6 publications

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“…For the case where gravity is considered and drag neglected, the resulting uncertainty on the prediction of the release height of a dripping drop can be estimated again by analyzing how equation (16) depends on the hematocrit. First, the viscosity m of the blood depends on the blood hematocrit, as per equation (5). Second, the drop impact diameter d i is not known on a crime scene, contrary to the laboratory experiments here where it can be measured from high-speed videos.…”

Section: Surfacementioning

confidence: 96%

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How important is it to consider target properties and hematocrit in bloodstain pattern analysis?

Kim

Agrawal

et al. 2016

Forensic Science International

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Section: Surfacementioning

confidence: 96%

“…These inaccuracies become significant as the distance between the origin of the event and the spatter increases, or in specific cases of downward projecting drops [2]. Several extensive studies have also explored the uncertainty associated with an arbitrary selection of stains or the values of impact angles [3][4][5].…”

Section: Introductionmentioning

confidence: 98%

How important is it to consider target properties and hematocrit in bloodstain pattern analysis?

Kim

Agrawal

et al. 2016

Forensic Science International

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“…Each trained model would implicitly incorporate the material-specific properties, and could therefore provide accurate estimates in a variety of conditions. However, even though the current model is able to accurately predict impact angles from 51 to 601 degrees, [25] has given some proof that stains with any impact angle can be used in directional analysis. It would therefore be beneficial to extend the model, permitting the analysis of stains between 51 and 901.…”

Section: Discussionmentioning

confidence: 86%

Calculation of bloodstain impact angles using an Active Bloodstain Shape Model

Joris

Develter

Jenar

et al. 2014

Journal of Forensic Radiology and Imaging

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“…Reconstruction methods based on straight trajectories, such as the method of strings or the trigonometric method, have been used in crime scene reconstruction since at least the 1950s [83] and have been implemented in software routinely used in crime scenes [84][85][86][87][88]. There is abundant BPA literature on the uncertainties associated with the choice of stains and their inspection to determine the angle of impact and area of origin [89][90][91][92][93]. The uncertainties are of two types, the error induced by assuming linear trajectories, and the uncertainty in determining the angles  and from stain inspection.…”

Section: (B) (B)mentioning

confidence: 99%

Fluid dynamics topics in bloodstain pattern analysis: Comparative review and research opportunities

Attinger

Moore

Donaldson

et al. 2013

Forensic Science International

158

139

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This comparative review highlights the relationships between the disciplines of bloodstain pattern analysis (BPA) in forensics and that of fluid dynamics (FD) in the physical sciences. In both the BPA and FD communities, scientists study the motion and phase change of a liquid in contact with air, or with other liquids or solids. Five aspects of BPA related to FD are discussed: the physical forces driving the motion of blood as a fluid; the generation of the drops; their flight in the air; their impact on solid or liquid surfaces; and the production of stains. For each of these topics, the relevant literature from the BPA community and from the FD community is reviewed. Comments are provided on opportunities for joint BPA and FD research, and on the development of novel FD-based tools and methods for BPA. Also, the use of dimensionless numbers is proposed to inform BPA analyses. Keywordsbloodstain pattern analysis, review, dimensionless number, drop generation, trajectory, impact, stain Disciplines Laboratory and Basic Science Research | Other Mechanical EngineeringComments NOTICE: this is the author's version of a work that was accepted for publication in Forensic Science International. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Forensic Science International, [231, 1-3, (2013) Abstract: This comparative review highlights the relationships between the disciplines of bloodstain pattern analysis (BPA) in forensics and that of fluid dynamics (FD) in the physical sciences. In both the BPA and FD communities, scientists study the motion and phase change of a liquid in contact with air, or with other liquids or solids. Five aspects of BPA related to FD are discussed: the physical forces driving the motion of blood as a fluid; the generation of the drops; their flight in the air; their impact on solid or liquid surfaces; and the production of stains. For each of these topics, the relevant literature from the BPA community and from the FD community is reviewed. Comments are provided on opportunities for joint BPA and FD research, and on the development of novel FD-based tools and methods for BPA. Also, the use of dimensionless numbers is proposed to inform BPA analyses.

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Investigation of a Model for Stain Selection in Bloodstain Pattern Analysis

Cited by 27 publications

References 6 publications

How important is it to consider target properties and hematocrit in bloodstain pattern analysis?

How important is it to consider target properties and hematocrit in bloodstain pattern analysis?

Calculation of bloodstain impact angles using an Active Bloodstain Shape Model

Fluid dynamics topics in bloodstain pattern analysis: Comparative review and research opportunities

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