Which knot can tie a life safety rope around a person?

The figure eight on a bight is specifically designed to create a secure loop within the rope, making it an excellent choice for tying a life safety rope around a person. This knot is effective because it distributes the load evenly on the rope and maintains its strength while providing multiple anchoring points. It allows the rescue technician to ensure a strong and stable attachment to a harness or directly around a person's torso, which is essential for safety during rescue operations.

Additionally, the figure eight on a bight can be untied relatively easily even after being subjected to heavy loads, which is a crucial feature in emergency situations. This knot is favored in fire service and rescue operations for securing personnel safely and effectively.

Other knots mentioned have their specific applications, but they do not offer the same level of security and functionality for tying around a person. For instance, the clove hitch is primarily used for fastening a rope to a post or anchor and is not secure enough for life safety applications. The bowline knot, while it creates a fixed loop, can be unreliable if not secured properly with a stopper knot in life safety situations. The half hitch is generally used to secure a rope but does not provide the necessary strength or stability when tying around a person.