Standards and Guidelines - Forensic Science Communications -
January 2005 January 2005 - Volume 7 - Number 1 Standards and
Guidelines Scientific Working Group for Materials Analysis
(SWGMAT) Scope | Reference Documents | Terminology | Summary of
Guideline | Significance and Use Sample Handling | Analysis |
Considerations | References | Bibliography This document
describes the guidelines for assessing fracture features as they
relate to forensic glass analysis. |Scientific Working Group for
Materials Analysis Documents Trace evidence recovery guidelines
|American Society for Testing and Materials Standard| |C1256
Standard Practice for Interpreting Glass Fracture Features|
Concentric cracks are fractures forming in an approximately
circular pattern around the point of impact. They are usually in
straight segments that terminate in an existing radial crack.
Cone or crater (Hertzian cone) is a funnel-shaped area of damage
caused by a high-velocity impact. Hackle is a line on the crack
surface running parallel to