Forensic Trace Evidence Quiz: GBI Video

What is the premise behind the science of trace evidence?

• There is no transfer that takes place when a person or object comes in contact with something or someone else

• There is a transfer that takes place when a person or object comes in contact with something or someone else

• The transfer of trace evidence can only occur between two objects

• The transfer of trace evidence can only occur between two people

What is the primary tool available to forensic analysts for providing vehicle year, make, or model information to the law enforcement community?

• Stereo brightfield polarized light

• Scanning electron microscope with energy-dispersive x-ray spectroscopy (SEM EDS)

• Fourier transform infrared microspectroscopy

• Paint data query (PDQ) database

What is the average number of hairs shed by a human per day?

• 50

• 75

• 125

• 100

What is the primary technique used by hair examiners to determine if the hair originated from a living or dead individual?

• Microspectrophotometry (MSP)

• Microscopic examination

• Fourier transform infrared microspectroscopy (FTIR)

• Melting point determinations

What is the primary technique used by paint examiners to determine the color, year, make, and model of a suspect vehicle?

• Paint data query (PDQ) database

• Fluorescence

• Stereo brightfield polarized light

• Melting point determinations

What is the primary technique used by glass analysts to determine the physical and optical characteristics of glass?

• Polarized light microscopy

• Scanning electron microscope with energy-dispersive x-ray spectroscopy (SEM EDS)

• Ultraviolet light

• Stereo microscopy

What is the most common constituent of gunshot primer residue (GSR)?

• Barium

• Lead

• Copper

• Antimony

What is the primary technique used by GSR analysts to analyze particles collected from the hands of suspected shooters?

• Scanning electron microscope with energy-dispersive x-ray spectroscopy (SEM EDS)

• Fourier transform infrared microspectroscopy (FTIR)

• Microspectrophotometry (MSP)

• Melting point determinations

What is the primary material examined in general materials examination?

• Metal

• Plastic

• Glass

• Currency

Tags

NGSS.HS-PS2-6

What is the primary technique used by fiber examiners to compare fibers to the suspected source of origin?

• Fluorescence

• Stereo brightfield polarized light

• Melting point determinations

• Microspectrophotometry (MSP)