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Each of these techniques was used in an episode of Forensic Files. Every page offers an explanation of a method used by actual forensic investigators.
As the series continues, more techniques will be added.
* Ritual Killings
Investigators look to see whether a crime's method of operation, or MO, was the same or different, and whether either or both crimes involved any ritualistic behaviors that could be used to characterize the suspect.
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* Digital Image Processing
Investigators may rely on computerized technology that enables digital processing and enhancement of an image.
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* The Global Positioning System (GPS)
A network of satellites encircling the globe that transmits signals accessible by an unlimited number of ground-based receivers.
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* Estimating Time of Death (TOD)
Medical investigators look for various signs to help them estimate a time frame - usually a 2 to 4 hour window of time - in which the victim probably died.
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* Casting of shoeprints
Casting can retrieve a three-dimensional footwear impression.
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* Characteristics of shoeprints
Identifying characteristics are defined as "characteristics that result when something is randomly added to or taken away from a shoe outsole..."
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* DNA extraction and analysis
Body fluids, such as semen, blood, and saliva, are commonly used in forensic investigations as a source of cells for DNA extraction and analysis.
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* Finding accelerants in arson investigations
Investigators can prove that a fire was set intentionally by finding an accelerant at the scene of a fire.
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* Signs of Asphyxiation
Asphyxiation, or death due to a lack of oxygen, can have many causes, including strangulation or compression of the neck, suffocation, drowning, choking, and hanging.
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