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Buffer Material

Home > Characterization and Evaluation of Fired Projectiles > Examination > Buffer Material

Shot buffer materials may be shown to be consistent with laboratory standards or other evidence items through the following procedure:

  1. Perform preliminary procedures.
  2. Compare all physical characteristics of the evidence buffer materials to the standards of similar manufacture and composition, including
    • color,
    • shape,
    • it may be useful in some cases to enlist the aid of an instrumental chemist in determining the composition of buffer materials.
  3. Examine questioned surface(s) visually and microscopically for the presence of buffer materials. (See Module 12, Gunshot Residue: Examinations).

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