What is a concentric fracture in broken glass?

Study for the Evidence Technician Exam. Use flashcards and multiple choice questions with hints and explanations. Prepare effectively for your exam!

A concentric fracture in broken glass is characterized by a pattern that forms a rough circle around the point of impact. This type of fracture occurs as the glass responds to the stresses produced by an impact, leading to circular cracks that expand from the periphery towards the center. It often accompanies radial fractures, which extend outward from the point of impact, but unlike radial fractures, concentric fractures clearly indicate the area of the initial contact in a circular fashion. This type of fracture can be important in forensic analysis as it can help investigators determine the direction and force of the impact, as well as the nature of the object that caused the breakage. Understanding these patterns is crucial for reconstructing incidents where glass breakage is involved.

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