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?

Highlights • Impact of blood drops on targets with varying material and roughness was investigated. • A procedure is described to measure hematocrit during bloodstain pattern analysis experiments. • Correlations relating the stain size and velocity of impact were developed. • Uncertainty in hematocr...

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Veröffentlicht in:Forensic science international 2016-09, Vol.266, p.178-184
Hauptverfasser: Kim, Sungu, Ma, Yuan, Agrawal, Prashant, Attinger, Daniel
Format: Artikel
Sprache:eng
Schlagworte:
Aluminum
Animal diseases
Blood
Bloodstain pattern analysis
Contact angle
Correlation analysis
Crime
Data processing
Drop impact
Droplets
Estimating
Estimation
Fluid flow
Forensic sciences
Hematocrit
Humidity
Inspection
Pathology
Pattern analysis
Reconstruction
Reynolds number
Spreading
Studies
Substrates
Surface roughness
Temperature
Trajectories
Trajectory analysis
Viscosity
Wettability
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Zusammenfassung:Highlights • Impact of blood drops on targets with varying material and roughness was investigated. • A procedure is described to measure hematocrit during bloodstain pattern analysis experiments. • Correlations relating the stain size and velocity of impact were developed. • Uncertainty in hematocrit induce significant errors in BPA trajectory reconstruction. • Consideration of target surface is needed for accurate BPA trajectory reconstruction.
ISSN:0379-0738
1872-6283
DOI:10.1016/j.forsciint.2016.05.015