Blood Drop

Which test would be considered a presumptive test for blood.

• DNA
• Blood Antigen Test
• Luminol

The directon of blood travel can be determined by:

• the size of the blood drop

• following the tail of the blood drop

• the type of blood (A, B, AB, O)

• the amount of blood present

A blood drop that is perfectly round would have an impact angle of 

• 10 degrees
• 45 degrees
• 30 degrees
• 90 degrees

A gunshot wound close to the head would produce 

• low velocity spatter
• high velocity spatter
• medium velocity spatter
• none of these

What does a "tail" on a blood stain tell you about the direction of travel of the blood drop?

• the blood came from the opposite direction of the tail

• the direction of the blood follows the tail

• A tail indicates multiple drops of blood

• A tail indicates the blood made contact at 90 degrees

The common area in a three-dimensional space to which the trajectories of several blood drops can be retraced to is the

• Transfer or contact

• Point of origin

• Angle of impact

• Low velocity impact

What is the acute angle formed between the directon of a blood drop and the surface it strikes called?

• Cast - off
• Wipe
• Medium Velocity Impact
• Angle of Impact

What is the transfer of blood from a moving source onto an unstained surface called?

• Wipe Pattern
• Void Pattern
• Transfer or Contact Pattern
• Swipe Pattern

What is the pattern that is created when blood is released or thrown from a moving blood-bearing object called?

• Cast-off pattern
• Swipe pattern
• Satellite spatter
• High velocity spatter

What type of spatter creates the largest blood droplets?

• Low velocity impact
• Medium velocity impact
• High velocity impact