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Christina H. & Taylor F.

Published on Nov 19, 2015

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PRESENTATION OUTLINE

BLOOD SPATTER

Photo by Csutkaa

There Are Different Types of Blood Spatter

1. Arterial Sputter: Which is when blood squirts when an artery, a blood vessel in the human body is cut.

2.) Back Spatter: When the blood flies back towards the the person causing the injury

3.) Cast-Off Pattern: When a cast-off blood stains caused by contact between a wet blood surface and a second surface which may or may not have blood on it

4.) High- Velocity Impact Stain: when a bloodstain that is caused by a high speed force to a blood source caused by a gunshot has a velocity that may be 100 ft/sec. Forms drops greater or equal to 1 mm.

EXAMPLE OF HVIS

AND BACK SPATTER

5.) Medium-Velocity Impact Stain:
when a bloodstain that is caused by a medium speed force to a blood source caused by a gunshot has a velocity that may be 25 ft/sec. Forms drops between 1-4 mm.

EXAMPLE OF MVIS

MEASURED BY THE BIG BLOOD SPATTER

6.) Low-Velocity Impact Stain:
when a bloodstain that is caused by a low speed force to a blood source caused by a gunshot has a velocity that may be 5 ft/sec. Forms drops 4-6 mm in length.

EXAMPLE OF LVIS

7.) Passive Drop: when a bloodstain's drop created by the force of gravity all by its self

8.) Swipe Pattern: when blood transfers from a moving source to and unstained source. The direction of the blood is determined by the feather like edge.

9.) Transfer/ Contact Stain: when the bloodstain pattern that was created when wet has contact with another surface