No, butterfly knives (balisongs) are prohibited in Japan under the Swords and Firearms Possession Control Law. The 2026 amendments to the Tokyo Metropolitan Ordinance explicitly classify balisongs as “dangerous tools,” criminalizing possession without a valid permit. Violations may result in up to 1 year imprisonment or fines exceeding ¥500,000.
Key Regulations for Butterfly Knives (Balisongs) in Japan
- Prohibition Under National Law: Balisongs are classified as “folding knives with a locking mechanism” under the Swords and Firearms Possession Control Law (Article 2-1-3), rendering them illegal to possess without a special permit.
- Local Ordinance Enforcement: Tokyo Metropolitan Ordinance No. 158 (2026 revision) explicitly bans balisongs, empowering police to conduct inspections and seize items without prior notice.
- Penalties for Non-Compliance: Unauthorized possession or carrying may incur penalties under the Penal Code (Article 19-2) or local ordinances, including imprisonment or substantial fines.
The National Police Agency (NPA) and local public safety commissions enforce these restrictions, with recent crackdowns targeting online sales and private collections. Travelers are advised to declare any balisongs at customs to avoid confiscation or legal consequences.