1 analysis of body fluids for forensic purposes: from laboratory testing to non-destructive rapid...
TRANSCRIPT
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Analysis of body fluids for forensic purposes: From laboratory testingto non-destructive rapid confirmatory identification at a crime scene
; Kelly Virkler, Igor K. Lednev, United States
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• Composition of each body fluid
• Summary of techniques
• Discussion of new method
• Introduction of techniques based on fluorescence and Raman spectoscopy
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The most common body fluids found at crime scenes.•Blood
•Semen
•Saliva
•Vaginal fluid
•Urine
•Sweat
****DNA evidence
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The main problem• Test is destruction of the sample.
• Smallest amount of biological evidence.
• Quantities.
• Preservation of DNA evidence.
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BLOOD
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Summary of all cur rent or older tests.
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SEMEN
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Summary of all cur rent or older tests.
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SALIVA
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Summary of all cur rent or older tests.
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VAGINAL FLUID
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Summary of all cur rent or older tests.
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URINE
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Summary of all cur rent or older tests.
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SWEAT
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Summary of all cur rent or older tests.
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Non-destructive confirmatory
identification of body fluids.
• Fluorescene spectoscopy
• Raman spectoscopy
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semen
Skin oil
saliva
urine
blood
Handheld fluorescence
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•Raman spectoscopy
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Special thank
Thongchai Tachowisan
(Advisor)
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Thank for your attention.