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Ballistics Notes

Ballistics Notes. Firearms. Many different types When on the scene FIND IT!!! Log (SMID) Process it. Anatomy of A gun. Different Types. Revolver Semiautomatic Submachine guns Hunting Rifle Shotgun. Anatomy of a bullet. Taken from Wikipedia*.

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Ballistics Notes

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  1. Ballistics Notes

  2. Firearms • Many different types • When on the scene • FIND IT!!! • Log (SMID) • Process it

  3. Anatomy of A gun

  4. Different Types • Revolver • Semiautomatic • Submachine guns • Hunting Rifle • Shotgun

  5. Anatomy of a bullet • Taken from Wikipedia* (1) bullet(2) casing(3) gunpowder(4) rim(5) primer

  6. From www.howstuffworks.com

  7. Types of Ammo • Full Metal • Hollow Point • Jacketed • Wadcutter • Soft points

  8. Shooting Scene Protocol • Swab all suspects for gunshot residue • Mark the position of cartridge cases • Account for every shot fired • Find weapon and check for spent ammo • Count cases • Search exhaustively to locate and retrieve all bullets

  9. Shooting Scene Protocol Cont. • Reconstruct all bullet trajectories • Laser • Computer program • Document the scene with photography and video • Recover any evidence and weapons from the crime scene

  10. Presumptive Done in the field Problems! Tests for GSR will only indicate presence of: - - - Confirmative Done in the Lab Tests will confirm the presence of: Types of tests

  11. In The Lab • Compare Ammunition Three Types of Equipment 1. 2. 3. • Test Weapons Three ways to test: 1. 2. 3.

  12. Marking on Ammo • Rifling Marks • Striations • Firing Pin Marks

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