After the Firearm and Sword Control Law was enforced in 1946, civilians were prohibited from possessing firearms for use other than hunting and target shooting and Japanese swords for use other than works of art.
1946年（昭和21年）に銃砲刀剣類所持等取締法が施行され、民間人は狩猟用や射撃競技用以外の銃器類と、美術用以外の日本刀を所持することができなくなった。