Within Shinkan-ryū are teachings to being responsible for our actions. Admitting fault of miss-actions or miss-deeds is essential. The gō-no-ken 業の剣 is the sword of kamma (karma-volitional action). We must guard the kamma of three types, body speech and mind. This is the sword of kamma that must not be misused.
Any person wielding weapons, even those of his or her own fists must abide by such laws.