Bloodstain Pattern Analysis

These flashcards cover key concepts, terms, and definitions related to bloodstain pattern analysis, helping to understand the scientific and forensic details.

Bloodstain Pattern Analysis

A forensic technique that examines the type and velocity of an impact, number of blows, position of the victim and assailant, and other factors related to bloodshed.

Passive Bloodstains

Bloodstains that result from the force of gravity, often appearing as drops or pools.

Projected Bloodstains

Bloodstains that occur when blood is projected through force (e.g., gunshot, beating) resulting in mist or splatter.

Transfer or Contact Bloodstains

Bloodstains created when a bloody object comes in contact with a surface, leaving a smear or print.

UV Light in Blood Analysis

Ultraviolet light that causes certain chemicals to fluoresce, aiding in the detection of blood stains that may be latent or cleaned.

Expository Blood

Blood that is expelled from the mouth or nose, often mixed with saliva and mucus.

Width and Length in Blood Analysis

Measurements that help determine the origin of blood spatter, indicating the position of the victim when struck.

1 mm or less

The size of blood spatters that indicate high-velocity impacts, such as gunshots.

1-4 mm

The size of blood spatters indicating medium-velocity impacts.

4 mm or more

The size of blood spatters indicating low-velocity impacts, often associated with beating or blunt force.