To enable the movement of a hunted animal such as a wild boar trapped and tied by a trapping wire to be limited, and further enable an operation for restraining a back lag and laying the animal down to be carried out precisely while keeping the safety of a hunter.

A fetter part 12 formed into an arc shape, a freely advancing and retreating engaging tool 4 and a mounting tool 5 are formed in a body side fetter member 1 of the fetter A1 for hunting. A movable-side fetter member 2 having the arc-shaped fetter part 20 is attached at the neighbor of the base part of the fetter part 12 so as to be turnable. A tensile spring 7 for urging the fetter members in the closing and narrowing direction is hooked between the base-side fetter member 1 and a movable-side fetter member 2. A trigger tool 6 capable of engaging the movable-side fetter member 2 in an opened state is attached to the fetter part 12. An operating wire 8 is tied to the fetter part 12, and engaging teeth 22 meshing with an engaging pawl 40 of the engaging tool 4 in the returning direction are formed at the end part of the base part of the fetter part 20.