4. Forensic Investigations 4. Comparison of class characteristics measured against those of known standards or controls; if all measurements are equal, then the two samples may be considered to have come from the same source or origin 5. Individualization in demonstrating that the sample is unique, even among members of the same class Comparison microscope for comparing specimens
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9. First Officer on the Scene A Assess the crime scene and assist the injured D Detain the witness A Arrest the perpetrator P Protect the crime scene T Take notes
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14. Crime Scene Sketch Date: August 14, 2005 Criminalist: Ann Wilson Time: 11:35 am Location: 4358 Rockledge Dr. , St. Louis, Mo. N 5 ft