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Study on development of forensic blood substitute: Focusing on bloodstain pattern analysis
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Study on development of forensic blood substitute: Focusing on bloodstain pattern analysis
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Journal Article
Study on development of forensic blood substitute: Focusing on bloodstain pattern analysis
2020
Overview
•Bloodstain pattern analysis is a field of forensic science, and the need for experiments and education is emphasized for bloodstain analyst.•Through the development of appropriate blood substitute that can replace human blood, it can greatly help in the development of forensic science and bloodstain pattern analysis.•In the manufacture of blood substitute, the similarity between physical properties and drip bloodstain characteristics with human blood is very important.•It will be more efficient if various functions are complemented for practical use of blood substitute.
Bloodstain pattern analysis, one of the areas of forensic science, is performed to analyze the physical characteristics of bloodstains, including their size, shape, and distribution, to reconstruct a crime scene. A bloodstain pattern analyst should obtain through experiments and education the capabilities to both understand the generation mechanisms of bloodstains and identify the characteristics of the bloodstains.
Experiments and education about bloodstain pattern analysis are carried out by using human blood taken from subjects, animal blood (porcine or bovine) supplied from butcheries, and blood substitute products developed in other countries. However, these kinds of blood have many limitations in their application due to various problems.
The blood substitute developed in the present study is more similar to human blood than other blood substitute products developed in other countries with regard to the physical properties, including viscosity, viscoelasticity, and surface tension, as well as the drip bloodstain patterns depending on the surface and coordinate characteristics of drip stains impact angle. The blood substitute developed in the present study is more practical, because the materials that are used in its preparation are readily available in the market and do not include chemicals that are harmful to the human body, and the blood substitute has luminol reaction functionality and pattern transfer bloodstain (bloodstain fingerprint, bloodstain footprint, etc.) dyeing functionality.
Publisher
Elsevier B.V,Elsevier Limited
Subject
/ Blood Substitutes - chemistry
/ cattle
/ Crime
/ Humans
/ Image Processing, Computer-Assisted
/ Luminol
/ markets
/ Ratios
/ Rheology
/ swine
