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Blood Spatter
| Question | Answer |
|---|---|
| Angle of Impact | the angle at which a blood droplet strikes a surface |
| Arterial Gushing | the large pattern of blood that is created when blood escapes an artery under pressure rising and falling |
| Arterial Spurts | large patterns created under pressure, but with less volume and usually more distinctive evidence of blood pressure rising or falling |
| Clot | a mass of blood and other contaminates caused through clotting mechanisms |
| Cast-off Stains | blood that has been thrown from a scecondary object (weapon or hand) onto a target other than impacted site |
| Drop Patterns | characteristic patterns present when blood drips into standing, wet blood |
| Expiratory Blood | blood which is spattered onto a target, as a result of breathing; typically this occurs ehen an injury is sustained to the throat, mouth, or airway |
| Impact Site | usually the point on the body that received the blow or applied force, from which the blood was shed |
| Origin | the point in space where the blood spatter came from |
| Parent Drop | the droplet from which the satellite spatter originated |
| Projected Blood | blood under pressure that strikes a target |
| Satellite Spatters | small drops of blood that reak off from the parent spatter when the parent droplet strikes a target surface |
| Shadowing/Ghosting/Void | a pattern that helps to place an object or body in the scene; normally, teh area in question lacks blood even through areas surrounding it show blood |
| Skeletonized Stain | the pattern left when an object moves through a partially dried stain, removing part of the blood, but leaving the outline of the stain intact |
| Spatter | bloodstains created from the application of force or energy to the area where the blood is |
| Spines | the pointed edges of a stain that radiate out to form the spatter |
| Splash | pattern created when a volume of blood in excess of 1mL strikes a surface at a low to medium velocity |
| Swipe | the transfer of blood onto a target surface by a bloody object that is usually moving laterally |
| Transfer Pattern | the pattern created when a wet, bloody object comes in contact with a target surface, leaving a pattern, which has the features of the object making it useful for identifying the object |
| Target | the surface where the lood ends up |
| Wipe | pattern created when a secondary target moves through an existing wet blood stain on some other object |
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