The detection, identification, classification and study of bodily fluids such as blood, semen, saliva and urine and their relationship to a crime scene, historically centered on blood typing and now often a preliminary step before DNA profiling.
Facts
What It ExaminesSourced to the subject's own accountBodily fluids recovered from a crime scene, principally blood, semen, saliva and urine. 1 Formalized YearSourced to the subject's own accountDates to Karl Landsteiner's 1901 discovery of the ABO blood group system; Landsteiner noted the forensic potential of the finding in the same paper, and by 1902 had presented a method for typing dried bloodstains to the Vienna Institute of Forensic Medicine. Known LimitationSourced to the subject's own accountUrine detection has only presumptive tests, because the material the tests target also appears in other bodily fluids, producing a substantial rate of false positives and inaccurate results. 1 Cross-Tradition Connections
Associated With
Forensic serology historically preceded DNA profiling and now commonly serves as its preliminary screening step.
Sources
1. Wikipedia: Forensic Serology
Opening definitionQuote, Opening definition
Detection, identification, classification, and study of various bodily fluids such as blood, semen, saliva, and urine, and their relationship to a crime scene.
1. Wikipedia: Forensic Serology
Urine Detection sectionQuote, Urine Detection section
There are only presumptive tests for urine detection because the tests used target material that can be found in other bodily fluids. This can cause a lot of false positives and inaccurate results.
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