Final answer:
A properly used body harness/fall arrest system for a hunter prevents serious injuries by distributing the force of a fall across the body, reducing the risk of injury and aiding in safe rescue.
Step-by-step explanation:
One important function of a properly used body harness/fall arrest system for a hunter is to prevent serious injury or death in the event of a fall from an elevated position, such as a tree stand. The harness distributes the force of the fall across the body more effectively than a simple belt or strap, reducing the risk of internal injuries and giving the hunter a better chance of being rescued safely. It's essential that hunters follow the instructions for properly fitting and securing the harness to ensure that it can provide the maximum level of safety.