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Thesasumata (刺股, spear fork) is apolearm used by thesamurai class and their retainers infeudal Japan.
Although some sources place the origin of the sasumata in theMuromachi period, most sources discuss its use in theEdo period. In Edo period Japan the samurai were in charge of police operations.
Thesasumata (spear fork) together with thetsukubō (push pole) and thesodegarami (sleeve entangler) comprised thetorimono sandōgu (three tools/implements of arresting) used by samurai police and security forces.[1] Samurai police in the Edo period used the sasumata along with the sodegarami and tsukubō to restrain and arrest suspected criminals uninjured. The head of the sasumata would be used to catch around the neck, arms, legs, or joints of a suspect and detain them until officers could close in and apprehend them (usinghojōjutsu). The sasumata had a long hardwood pole usually around 2 m (6 ft 7 in) in length with sharp barbs or spines attached to metal strips on one end of the pole to keep the person being captured from grabbing the pole. The opposite end of the sasumata pole would often have a metal cap, orishizuki like those found onnaginata and other polearms.[2]
There were also firefighting versions of the instrument known as achokyakusan,rinkaku,tetsubashira, ortokikama. A similar weapon in China[citation needed] was known as achang jiao qian, and sometimes called acha gan orhuo cha (fire fork), which had a similar firefighting role.[citation needed] The sasumata type implements were used by firefighters to help dismantle burning buildings, raise ladders, and otherwise assist with their duties.
Today, a modern version of the sasumata is still occasionally used by the police and as a self-defense tool. These modern sasumata are often made of aluminum, without the sharpened blades and spikes found on their medieval counterparts. They have been marketed to schools due to a growing fear of classroom invasions, which has prompted many schools in Japan to keep sasumata available for teachers to protect themselves and students and to detain a potential threat until the authorities can arrive.[3] The introduction of sasumata to schools came to be popular after theIkeda school massacre in 2001.[4]
In November 2023, an employee of a jewellery store in Tokyo used asasumata to drive off three robbers wearing motorcycle helmets, attracting nationwide interest and increased sales of the weapon.[5]
Media related toSasumata at Wikimedia Commons