Tottori Prefecture: AI-generated sexual images of minors (Youth Healthy Development Ordinance)
Tottori Prefecture bans AI-altered sexual images of real, recognisable minors, with deletion orders, fines and naming of people who ignore a deletion order. One of Japan’s first binding deepfake rules.
Tottori Prefecture amended its Youth Healthy Development Ordinance to cover sexual images made by altering a real minor’s appearance with generative AI, where the child can be recognised. The ban on creating or providing such images has applied since 1 April 2025, including acts outside the prefecture involving minors who live there. Since 4 August 2025 the prefecture can order deletion, publicly name people who ignore a deletion order, and impose fines of up to ¥50,000.
Japan has no national AI-specific law on deepfakes, so local rules like this one fill part of the gap.
Key dates
Ban applies
Deletion orders, fines and naming of people who ignore orders apply