New Arizona Task Force Works to Right Wrongful Convictions Through Hair EvidenceRead More
Trace Evidence
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AAFS 2018: Hair Proteins Under the Microscope
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The Evidence for Very Small Particles
Forensic Hair Analysis Has A Long Road Back To Courtroom Glory
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Gunshot residue contamination of the hands of police offices following start-of-shift handling of their firearm
Forensic Science International published a research article by Michael Cook in Nov. 2016. The study found that 85 percent of officers had 3-component GSR particles on their hands immediately following the start-of-shift handling of their firearms.
An experimental investigation of the indirect transfer and deposition of gunshot residue: Further studies carried out with SEM–EDX analysis
In this research study, as many as 22 particles were found to have undergone tertiary transfer via a series of handshakes following a firearm discharge. Significant numbers of particles were also recovered from bystanders, with as many as 36 being detected on a sample taken from an individual who was in the proximity of a …
The secondary transfer of gunshot residue: an experimental investigation carried out with SEM-EDX analysis
Findings from this research study demonstrate that relatively large amounts of GSR can be transferred to an individual immediately after the discharge of the firearm, through contact with the hands of the shooter or handling of the gun. These findings suggest that the presence of GSR (especially in small quantities) may not always indicate that …