CFC Crime Scene Reconstruction 2

Question 1

In crime scene reconstruction, what does 'Locard's Exchange Principle' specifically state?

Accepted Answer

Every contact leaves a trace between two surfaces

Answer

Locard's Exchange Principle holds that whenever two objects come into contact, material is transferred between them, forming the foundation of trace evidence analysis.

Question 2

A reconstructionist finds a bullet entry wound on the victim's back with an exit wound on the front. What does this indicate about the shooter's position?

Accepted Answer

The shooter was behind the victim

Answer

Bullets travel from entry to exit wound, so a posterior entry with anterior exit indicates the shot came from behind the victim.

Question 3

Which method is used to determine the area of origin of blood spatter in 3D space?

Accepted Answer

Stringing method connecting individual stain trajectories

Answer

The stringing method uses the directionality and impact angles of individual bloodstains to triangulate the three-dimensional origin point of the spatter event.

Question 4

What does a 'transfer bloodstain' indicate at a crime scene?

Accepted Answer

Blood was moved from a bloody surface to a secondary surface by contact

Answer

Transfer stains result from direct contact between a bloody object and a secondary surface, potentially revealing the shape of the object that caused the transfer.

Question 5

In shooting incident reconstruction, what is the primary purpose of trajectory rods?

Accepted Answer

To establish the bullet's path through space and identify the shooter's location

Answer

Trajectory rods are inserted through bullet holes to visually represent the bullet's flight path, allowing reconstructionists to back-project to the shooter's probable position.

(CFC) Certified Forensic Consultant Practice Test

(CFC) Certified Forensic Consultant Practice Test

CFC Crime Scene Reconstruction 2