Watch Out Below! By the
Safety Guys: Vince McLeod, CIH, Glenn Ketcham, CIH
Investigations and evidence
collection can take one into unusual settings including inside
confined spaces such as trash compactors, storm sewers, underground
vaults, and into deep excavations or trenches. Many locations may
appear relatively benign but can hold hidden hazards with
potentially fatal consequences for any who enter unprepared.
EDAX: The New Versatile Micro XRF Orbis
Elemental Analyzer
The Orbis incorporates a motorized turret for coaxial
sample view and X-ray analysis. Primary beam filters are used
with X-ray optics for ì-spot analyses. Minimal sample preparation
and improved sensitivity over SEM/EDS. Applications: forensics,
materials I.D./compositional analysis, failure analysis,
RoHS/WEEE, non-destructive testing, elemental imaging and more. www.edax.com/newxrf
The Controversy Concerning Gunshot Residues
Examinations By: Dennis
L McGuire, M.S.
Lawyers,
judges, and juries can be seriously misled by crime laboratory
findings of the presence of gunshot residues (GSR).
Gunshot residues are defined in the
Association of Firearms and Toolmark Examiners (AFTE) Glossary as
“The total residues resulting from the discharge of a firearm, it
includes both gunpowder and primer residues, plus metallic residues
from projectiles, fouling etc.”
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