CSI CDT FINAL PAPER PRACTICE
QUESTIONS WITH VERIFIED ANSWERS
PACKAGE
●● Transfer swipe
Answer: bloody object touches a surface and leaves a mark
●● Cast-off stains
Answer: blood flung from an object (like a weapon)
●● Expirated blood
Answer: blood from mouth/nose due to internal injury
●● Splatter types
Answer: 1. High-velocity
2. Medium-velocity
3. Arterial spurt
●● What is high-velocity blood splatter?
Answer: Fine mist-like droplets typically caused by gunshot wounds
,●● What is medium-velocity blood splatter?
Answer: Bloodstains caused by blunt force trauma, producing larger
droplets than high-velocity splatter
●● What is an arterial spurt pattern?
Answer: A wave-like pattern (similar to an EKG) caused by blood being
pumped from a breached artery
●● What doe the pointed end of a bloodstain indicate?
Answer: The direction the blood was traveling
●● What does stains on the ceiling suggest?
Answer: Upward cast-off from a weapon or object
●● What does inconsistent blood flow compared to gravity indicate?
Answer: The body or object was moved after the blood began drying
●● Why are white blood cells important in forensic analysis?
Answer: They contain DNA, which can be used for identification
●● What is the function of the barrel in a firearm?
Answer: It leaves unique marks (striations) on a bullet as it travels
through
, ●● What does the firing pin do?
Answer: It strikes the primer to ignite the cartridge and fire the bullet
•Can link a spect cartridge to a specific firearm
●● Is the hammer part of the cartridge?
Answer: No, the hammer is part of the firearm, not the cartridge
●● What are striations?
Answer: Scratches on bullets caused by the barrel
•used to identify a specific gun
●● What is a firing pin impression?
Answer: A mark left on a casing that can link it to a specific firearm
●● What is a comparison microscope used for?
Answer: To compare bullets or casings side-by-side for identification
●● What indicates a close-range gunshot?
Answer: Stippling (tattooing) caused by unburned gunpowder hitting the
skin
QUESTIONS WITH VERIFIED ANSWERS
PACKAGE
●● Transfer swipe
Answer: bloody object touches a surface and leaves a mark
●● Cast-off stains
Answer: blood flung from an object (like a weapon)
●● Expirated blood
Answer: blood from mouth/nose due to internal injury
●● Splatter types
Answer: 1. High-velocity
2. Medium-velocity
3. Arterial spurt
●● What is high-velocity blood splatter?
Answer: Fine mist-like droplets typically caused by gunshot wounds
,●● What is medium-velocity blood splatter?
Answer: Bloodstains caused by blunt force trauma, producing larger
droplets than high-velocity splatter
●● What is an arterial spurt pattern?
Answer: A wave-like pattern (similar to an EKG) caused by blood being
pumped from a breached artery
●● What doe the pointed end of a bloodstain indicate?
Answer: The direction the blood was traveling
●● What does stains on the ceiling suggest?
Answer: Upward cast-off from a weapon or object
●● What does inconsistent blood flow compared to gravity indicate?
Answer: The body or object was moved after the blood began drying
●● Why are white blood cells important in forensic analysis?
Answer: They contain DNA, which can be used for identification
●● What is the function of the barrel in a firearm?
Answer: It leaves unique marks (striations) on a bullet as it travels
through
, ●● What does the firing pin do?
Answer: It strikes the primer to ignite the cartridge and fire the bullet
•Can link a spect cartridge to a specific firearm
●● Is the hammer part of the cartridge?
Answer: No, the hammer is part of the firearm, not the cartridge
●● What are striations?
Answer: Scratches on bullets caused by the barrel
•used to identify a specific gun
●● What is a firing pin impression?
Answer: A mark left on a casing that can link it to a specific firearm
●● What is a comparison microscope used for?
Answer: To compare bullets or casings side-by-side for identification
●● What indicates a close-range gunshot?
Answer: Stippling (tattooing) caused by unburned gunpowder hitting the
skin
