FORENSIC ANALYSIS OF BLOOD STAINS AND THEIR SIGNIFICANCE AS EVIDENCE
Keywords:
blood, blood stains, homicidesAbstract
Criminological operational analyses of blood stains obtained at the crime scene are of great importance in determining the identity of the person who has committed a criminal offence.
The aim of this study was to illustrate the significance of evidence of blood stains and their appropriate interpretation in solving criminal offences, mainly in the area of homicides.
We made an experiment using pork blood, a metal bar to make enough hits, a doll’s head, soaked gauze in pork blood which imitated the head tissue, a calliper to measure the dimension of blowed up blood drops and overalls with protective equipment.
The subject of the analysis were the spatters of blood traces got with just one strike, and were projected on the vertical surface of the wall next to the body, which could be divided into three groups or clusters. From each group of blood pattern projected on the vertical surface, ten (stains) spatters were analyzed, which could be a representative sample for the group of stains from which they originated.
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