Class characteristics
Features shared by all specimens produced by a given manufacturing design: land count, groove count, twist direction, and twist rate. Matching class characteristics is necessary but not sufficient for identification.
Explained in these topics
- Forensic Examination of Firearms, Bullets, Shells and Cartridges
- Tool Mark Evidence: Types, Comparison Principles and Collection
- Stereo Microscope and Comparison Microscope
- Bullet Striation Comparison and the Comparison Microscope
- Sharp-Force Trauma: Cuts, Stabs, Chops and Saw-Mark Analysis
- Physical Evidence: Nature, Types, Collection and Chain of Custody
- Multi-Script Handwriting: Latin, Devanagari, Arabic and CJK
- Tool Marks: Fundamentals, Striations and Impressions