FIS 201- Lecture 20

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Forensic Science

Last updated 7:06 PM on 12/5/22
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16 Terms

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Sticky Stubs
Collect metallic primer residues
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Sodium rhodizonate
Tests for lead
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Griess
Tests for nitrates in gunpowder
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All the moving parts that load, fire, and eject the ammunition
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Barrel
Metal tube down which the projectile is forced by expanding gas pressure
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Stock/Grip
The area(s) where the shooter holds and control the firearm
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Bolt/Slide
Blot lifts cartridge and slides it into chamber, extractor and ejector expel empty case
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Cylinder
Cylinders rotates chamber, Empty cases manually removed in a batch
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Chamber
Area at the rear of the barrel that houses a cartridge during firing
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Breech
Rear wall of the chamber
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Firing Pin
Forcefully strikes cartridge, igniting it
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Trigger
Lever that is pulled to release the firing pin
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Rifled
Fires bullets, interior with a spiraled lands and grooves, width of barrel=bore
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Smooth
Fires shot or slugs, width of barrel=gauge
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Rifled Barrel: Cartidges
Case/Casing, Primer, Powder, Bullet
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Shotgun Shells
Shot, Wad, Powder, Prime, Case/Hull