Japan's customs found 1,531 kg of cannabis in 2025, about 3.5 times the 2024 amount and the largest annual cannabis seizure on record. Herbal cannabis accounted for 1,213 kg, including a single one-tonne shipment found by Tokyo Customs in June; THC products added 318 kg. The United States was the origin of 43% of detected cannabis cases, Thailand 27% and Vietnam 8%.[1][2]
Listed for context. No score change is recorded for Japan here.
References
- Japan Ministry of Finance — 令和7年の全国の税関における関税法違反事件の取締り状況（令和8年2月17日）詳細Section 1(2) 大麻: 316 cases, about 1,531 kg; 1,213 kg herbal cannabis; 318 kg THC products; US 43%, Thailand 27%, Vietnam 8%
- The Mainichi — 税関の薬物押収、6年ぶり3トン超 大麻1531キロ過去最大18 February 2026; 1,531 kg cannabis, about 3.5 times the previous year and a record
Checked. The date and the event were compared with a source that was read.