Saturday, July 9, 2011

Crime Scene Forensics - Broken glass found at a crime scene analysis

Crime Scene Investigators (CSI) for the crime investigation show. They look at things through the broken glass is to pass the shot or pills. Such information can be found in the proof of the broken glass technician with a keen eye can tell a story.

The way many breaks in the glass that offers clues about how it was broken. For example, glass is glass that was broken by a baseball faster than a speeding bullet that was broken by the different pattern than a fracture.

Special features of the break was a forensic scientist to explore the impact of the permit. They include a special type of stress fracture conchoidal lines are called lines. Conchoidal lines are lines that can emanate from the impact site.

If the investigator takes a close look at conchoidal lines, he can see little lines that radiate around 90 degrees with conchoidal lines. The fracture lines are known as hackle marks.

In other flat plate glass of the windows and windshields to focus and do radiate cracks. Perpendicularly to the surface of the glass, the radial cracks that radiate outward from the impact point of view. Like spokes of a wheel that radiate from the center of this picture.

Then, the glass perpendicular to the surface of any cracks around the impact point are focused and concentric cracks will get called. Concentric cracks cracks progressively larger circles form around the point of impact. Of a circle within a circle within a circle as the picture .... Around the impact point.

If a speeding bullet strikes a window and enters it, but it does not break completely, destruction or the aforementioned fracture lines together with no holes are left behind.

Effects (entrance) of the one side, the hole will be smaller and cleaner. Effect (exit side) on the other side, a small conical piece of glass had been removed.

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