Cast-off refers to what?

• A. Decompose
• B. Cyanosis
• C. Contact wound
• D. Cast-off

Answer: (D)

Cast-off is a bloodstain pattern that occurs when blood is projected from a bleeding wound or a weapon during a rapid, swinging motion. As the blade or hand moves, drops of blood are flung onto nearby surfaces, creating a line or series of stains—often on walls or ceilings—that reflect the weapon’s arc and the direction of travel. This pattern helps investigators infer the number of blows and the movement during the incident. It’s different from a contact wound imprint (which comes from the weapon touching the body) and from color changes due to decomposition or cyanosis, which are not bloodspatter patterns.