What are the 6 patterns blood spatter can be categorized into?
What are the 6 patterns blood spatter can be categorized into?
Blood dripping, contact with bloody objects, which can further be categorized as contact patterns, drip patterns, drip trails, blood pools or flows or blood clots. The type of surface the blood strikes affects the amount of the resulting spatter, including the size and appearance of the blood drops.
What are 3 things you can find out by looking at blood spatter patterns?
Pattern Analysis looks at the physical characteristics of the stain patterns including size, shape, distribution, overall appearance, location and surface texture where the stains are found. Analysts interpret what pattern types are present and what mechanisms may have caused them.
What are 5 things that blood spatter can tell us?
Analysis of a spatter pattern can aid in determining the: • direction blood traveled. angle of impact. point of origin of the blood. velocity of the blood.
How do you analyze blood spatter?
Bloodstain Pattern Analysis
- Where did the blood come from?
- What caused the wounds?
- From what direction was the victim wounded?
- How were the victim(s) and perpetrator(s) positioned?
- What movements were made after the bloodshed?
- How many potential perpetrators were present?
What are the three types of blood patterns?
Bloodstains are classified into three basic types: passive stains, transfer stains and projected or impact stains.
What are the 4 types of passive bloodstains?
- Passive. a. formed from the force of gravity acting alone. b. subdivided (drops, drip patterns, pools, clots) c. oozing or gushes from the body, dripping finger or arm, drops from a knife.
- Transfer. a. wet bloody surface comes in contact with a secondary surface. b. wipe, smudge, swipe or smear. c.
- Projected blood spatter.
Which blood pattern is identified by a formation of blood around a heavily bleeding victim that remains in one place?
Pools
Six Patterns Blood can be classified: Pools – form around victim who is bleeding heavily and remains in one place.
What factors affect blood spatter patterns?
Several factors influence the appearance of satellite spatter, including the blood drop volume, freshness of blood, surface texture, and distance of the vertical target from the impact site.
What are the 2 phases of bloodstain pattern interpretation?
Bloodstain pattern analysis is performed in two phases: pattern analysis and reconstruction.
What are the 3 categories of bloodstains?
Bloodstains are classified into three basic types: passive stains, transfer stains and projected or impact stains. Passive stains include drops, flows and pools, and typically result from gravity acting on an injured body.
What is the pattern of arterial spurting?
Arterial Spurting (or gushing) Pattern — Bloodstain pattern(s) resulting from blood exiting the body under pressure from a breached artery. Directionality of a blood drop’s flight can usually be established from the geometric shape of its bloodstain.
What blood pattern is created when a volume of blood has been absorbed by an object?
Cast Off Stains-Cast-off patterns are bloodstain patterns created when blood is released or thrown from a bloody object while the object is in motion, or an object that suddenly stops its motion.