Abstract: A more durable security tool is provided that can protect the user and take control of criminals simultaneously in crimes using a knife. A guard baton with three detachable prongs, comprises a guard stick and a three-pronged tip fixed to a tip of the guard stick. The three-pronged tip includes three aluminum poles having rear ends to which stainless-steel screws are fixed, and a stainless-steel pole attachment member having a front surface on which three screw holes are formed at 120° intervals seen from the front and extend forward at about 45° seen from the side. The stainless-steel screws fixed to the three aluminum poles are detachably screwed into the three screw holes. It is preferable to employ a metallic two-stage telescopic stick baton as a guard stick.