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Title: Sasumata  
Author: World Heritage Encyclopedia
Language: English
Subject: Sodegarami, Tsukubō, Torimono sandōgu, Edo period police, Hata-jirushi
Collection: Pole Weapons of Japan, Police Weapons, Samurai Pole Weapons, Samurai Police Weapons
Publisher: World Heritage Encyclopedia


Weapons for capturing suspected criminals:on the left tsukubō, in the middle sodegarami and on the right sasumata

The sasumata (刺股) (spear fork) is a pole weapon used by the samurai class and their retainers in feudal Japan.


  • Description and use 1
    • Firefighting 1.1
    • Modern Use 1.2
  • See also 2
  • Gallery 3
  • References 4
  • Sources 5
  • External links 6

Description and use

Although some sources place the origin of the sasumata in the Muromachi period, most sources discuss its use in the Edo period. In Edo period Japan the samurai were in charge of police operations. Various levels of samurai police with help from non-samurai commoners used many types of non-lethal weapons to capture suspected criminals for trial.

The sasumata (spear fork) together with the tsukubō (push pole) and the sodegarami (sleeve entangler) comprised the torimono 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 him until officers could close in and apprehend him (using hojōjutsu). The sasumata had a long hardwood pole usually around two meters 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, or ishizuki like those found on naginata and other pole weapons.[2]

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. A reported rise in school invasions has prompted many schools in Japan to keep sasumata available as a method for teachers to protect themselves or students and detain a potential threat until the authorities can arrive.[3]


There were also firefighting versions of the instrument known as a chokyakusan, rinkaku, tetsubashira, or tokikama. A similar weapon in China was known as a chang jiao qian, and sometimes called a cha gan or huo cha (fire fork), which had a similar firefighting role. The sasumata type implements were used by firefighters to help dismantle burning buildings, raise ladders, and otherwise assist with their duties.

Modern Use

Sasumata are in modern use in public places in Japan such as schools, where they are kept to protect against trespassers or violent assailants.

See also



  1. ^ , Don Cunningham, Tuttle Publishing, Apr 15, 2004 P.96Taiho-jutsu: law and order in the age of the samurai
  2. ^ , Don Cunningham, Tuttle Martial Arts, Tuttle Publishing, 2004 ISBN 0-8048-3536-5, ISBN 978-0-8048-3536-7 P.93-100Taiho-jutsu: law and order in the age of the samurai
  3. ^ Mainichi Shinbun 2004.


  • Cunningham, Don. Taiho-jutsu:Law and Order in the Age of the Samurai. Boston; Rutland, Vermont; Tokyo: Tuttle Publishing, 2004.
  • 神之田常盛. 剣術神道霞流. 萩原印刷株式会社, 2003.
  • Mol, Serge. Classic Weaponry of Japan: Special Weapons and Tactics of the Martial Arts. Tokyo; New York; London: Kodansha International, 2003.

External links

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