Sub-Class Characteristic
Definition
Batch-level feature introduced by manufacturing-tool wear that is shared by a sub-population of tools made in the same production run (a die that wore over the run). Used with caution because it is not unique.
Related terms
- AFTE Range of Conclusions
- Association of Firearm and Tool Mark Examiners standard scale: Identification, Inconclusive (A, B, C), Elimination, Unsuitable for examination. The same scale used...
- Class Characteristic
- A feature shared by an entire group of objects (every shoe of one model has the same sole tread; every tire of...
- Combination Mark
- Both impressed and striated features in the same mark, typical of pry-bar and chisel attacks where the tool first bites into the...
- Impressed Mark
- Also called indented or compression mark. Tool is pressed perpendicularly into the softer surface and reproduces the contour of the tool's working...
- Individual Characteristic
- A characteristic unique to a specific typewriter unit arising from manufacturing variation or service wear; used to identify or eliminate a specific...
- Mikrosil
- Brand-name silicone polymer casting compound (also Microsil, AccuTrans) used to lift a fine-detail negative of a tool mark from the scene without...
- Striated Mark
- Also called scratch, abrasion or scrape mark. Tool slides laterally across the surface and leaves parallel striations from microscopic imperfections on the...
- Tool Mark
- Any impression, scratch, gouge, cut or abrasion left on a softer object (the recipient surface) when a harder object (the tool) acts...
Explained in
- Tool Marks: Meaning, Types and ExaminationBatch-level feature introduced by manufacturing-tool wear that is shared by a sub-population of tools made in the same production run (a die that wore over the...