Which technique is used to show the path of a bullet in a crime scene?

Trajectory analysis is an essential technique in crime scene investigation used to determine the path of a bullet after it has been fired. This method involves measuring the angles and distances from various reference points at a crime scene to reconstruct the bullet's trajectory. By analyzing the bullet holes, any errant projectiles, and their impacts on surfaces, investigators can establish a clearer picture of the shooting incident, including the shooter’s position, the victim’s location, and other relevant factors.

This method is crucial for crime scene reconstruction as it helps to provide visual and physical evidence that can corroborate witness testimonies or provide insight into the sequence of events during the crime. Trajectory analysis often employs tools such as lasers or trajectory rods to accurately depict the bullet's path, making it a vital component of forensic investigation in shooting cases.

The other techniques, such as fingerprint comparison and forensic accounting, serve different purposes in investigations and do not relate specifically to the analysis of a bullet's path. Fingerprint comparison deals with identifying individuals through their unique prints, while forensic accounting pertains to financial investigations. Ballistic fingerprinting refers to the process of matching bullets or cartridge casings to a specific firearm but does not focus on the trajectory path.