What does a swipe blood pattern indicate?

A swipe blood pattern indicates blood that has been laterally transferred from a moving object to a surface. This typically occurs when a person or object with blood on it makes contact with a clean surface while in motion, leaving a distinct pattern that reflects the direction of the movement. The nature of the swipe pattern can indicate the movement of the object, providing valuable information during a forensic investigation.

This type of blood pattern is important for crime scene analysis, as it can help reconstruct events surrounding a crime. For instance, if a bloody hand sweeps against a wall, the swipe pattern may show the motion and position of the person who left the mark.