To provide two-pronged weapons 11 and 12 each automatically closed by pressing it against a capture object person in an opened state and capable of capturing the capture object person by one of the two-pronged weapons by forming it into a structure without being easily opened when the capture object person is once captured.

These two-pronged weapons 11 and 12 are composed by two arc-like arms 5 and 6 so as to form a nearly annular shape when closed, by openably and closably attaching them and by connecting the central parts of the two arms 5 and 6 to each other by wires 9. In the two-pronged weapon 11, a plurality of projection members 8 are attached to the inside of the arms 5. In addition, the two-pronged weapon 12 is composed by attaching rollers 7b made of rubber to tips of the arms 6 through one-way clutches 6c. The capture object person can be easily captured without hurting him or her even in thrusting it to him or her by slightly deflecting it from his or her center.