Safety Measures
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*No eating, drinking, smoking, or using cell phones in the crime scene
*Be alert for biological, chemical, environmental, or mechanical hazards
*Watch for sharp objects such as hypodermic needles, knives, razors,
broken glass, nails, exposed metal, or other objects
*Do not use the bathrooms at the crime scene
*Never pick up broken glass with your hands. Use a brush and dust pan,
tongs, forceps, or tweezers and place the pieces in a secure container
*Place all syringes, needles, and other sharp objects in a puncture resistant
container with a biohazard waring label. Never recap or place covers such
as erasers over hypodermic needles.
*When searching confined spaces, use mirrors, flashlights, and other tools
before placing your hands in the space. Do not overlook the potential for
poisonous spiders and/or snakes in narrow or confined dark areas
*Always use caution in unknown environments. Exotic pets may pose a
hazard-poisonous snakes, scorpions, and spiders can startle the
unsuspecting CSI
*Always wash your hands or other skin surfaces thoroughly and
immediately if you come in contact with any body fluid. The universal
, decontamination solution is a diluted solution of bleach 1:10 or 70%
isopropyl alcohol
NFPA 1033
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standards that dicate the knoledge skills and abiliies that arson
investigators must master
Impression evidence
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fingerprints, palm prints, nose or ear prints, toolmarks, and foot wear/tire
impressions
HMIS
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Hazardous Materials Identification System-chemicals must be properly
labeled with appropriate hazard warnings labels
Bassistic trajectory
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, the path a bullet takes when a weapon is discharged
Rotten eggg odor indicates?
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Hydrogen Sulfide. Hydrogen sulfide is more toxic than hydrogen cyanide
Medium velocity impact spatter
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creats smaller spatter and is produced when velocity of the force is
between 5-25 feet per second. Blunt trama may result in MVIS or stabbing
that can range from 1mm to 3mm in diamter
Skeletonized stains
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occur when the perimeter of the stain has dried and the center has flaked
away, leaving the visible outer ring
Color standards for HMIS
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, blue=health hazard
red=flammability
yellow=reactivity
white section=special info ie what PPE to wear
CBRNE crime scnes
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scenes involving weapons of mass destruction-chemical, biological,
radiological, nuclear, and explosive
destructive ink or paper testing should be conducted when?
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Only after other nondestructive tests have been perofmed to determin if
the question can be adequately answered through nondestructive means
ASLD
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American Society of Crime Lab Directors
Rule 702
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*No eating, drinking, smoking, or using cell phones in the crime scene
*Be alert for biological, chemical, environmental, or mechanical hazards
*Watch for sharp objects such as hypodermic needles, knives, razors,
broken glass, nails, exposed metal, or other objects
*Do not use the bathrooms at the crime scene
*Never pick up broken glass with your hands. Use a brush and dust pan,
tongs, forceps, or tweezers and place the pieces in a secure container
*Place all syringes, needles, and other sharp objects in a puncture resistant
container with a biohazard waring label. Never recap or place covers such
as erasers over hypodermic needles.
*When searching confined spaces, use mirrors, flashlights, and other tools
before placing your hands in the space. Do not overlook the potential for
poisonous spiders and/or snakes in narrow or confined dark areas
*Always use caution in unknown environments. Exotic pets may pose a
hazard-poisonous snakes, scorpions, and spiders can startle the
unsuspecting CSI
*Always wash your hands or other skin surfaces thoroughly and
immediately if you come in contact with any body fluid. The universal
, decontamination solution is a diluted solution of bleach 1:10 or 70%
isopropyl alcohol
NFPA 1033
Give this one a try later!
standards that dicate the knoledge skills and abiliies that arson
investigators must master
Impression evidence
Give this one a try later!
fingerprints, palm prints, nose or ear prints, toolmarks, and foot wear/tire
impressions
HMIS
Give this one a try later!
Hazardous Materials Identification System-chemicals must be properly
labeled with appropriate hazard warnings labels
Bassistic trajectory
Give this one a try later!
, the path a bullet takes when a weapon is discharged
Rotten eggg odor indicates?
Give this one a try later!
Hydrogen Sulfide. Hydrogen sulfide is more toxic than hydrogen cyanide
Medium velocity impact spatter
Give this one a try later!
creats smaller spatter and is produced when velocity of the force is
between 5-25 feet per second. Blunt trama may result in MVIS or stabbing
that can range from 1mm to 3mm in diamter
Skeletonized stains
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occur when the perimeter of the stain has dried and the center has flaked
away, leaving the visible outer ring
Color standards for HMIS
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, blue=health hazard
red=flammability
yellow=reactivity
white section=special info ie what PPE to wear
CBRNE crime scnes
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scenes involving weapons of mass destruction-chemical, biological,
radiological, nuclear, and explosive
destructive ink or paper testing should be conducted when?
Give this one a try later!
Only after other nondestructive tests have been perofmed to determin if
the question can be adequately answered through nondestructive means
ASLD
Give this one a try later!
American Society of Crime Lab Directors
Rule 702
