Forensic And Age Determination Of Blood Stains

2967 WordsOct 4, 201412 Pages
Forensic approaches to age determination of blood stains Among the many pursuits of forensic scientists, one of the foremost attempts is that of establishing time of death of a victim by use of whatever evidence is available. Even though some calculations for estimations are claimed to be available to a few branches of the forensics community, such as medical examiner determination by use of internal temperature of the body, or the onset of rigor and livor mortis, or that of the entomologist 's estimations based on the pupal and larval stages of different carrion insects, it may be that the body is in such an advanced state of decay that these calculations cannot give an accurate calculation, or, even worse, that a body may be absent. In light of such possibilities, it may however be possible to use other types of evidence to establish time of death, time of deposition, and render a partial, if not full reconstruction of events on the scene based on the age and order of deposition of other evidence. Bloodstains represent one such potential piece of evidence that, aside from having the possibility of providing a link to a person by DNA, may allow investigators to determine the time of deposition, and perhaps aid in the reconstruction of the purported events. Attempts to establish the age of bloodstains have been made since early 1900s (Bremmer et al., 2012), but no early technique could really be established as a universal and accepted method. One issue that most techniques

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