Masakazu Ono, a 56-year-old resident of Sagamihara, was arrested by the Kyoto Prefectural Police for his role as a prolific seeder on the torrent tracker Nyaa, with assistance from the anti-piracy organization CODA and the Japan Hacker Association. His arrest was linked to the upload of the television series Midnight Taxi, but he had been sharing various programs from the Japanese broadcasting corporation for years. CODA identified him using tracker metadata analysis and de-anonymization techniques through Deep Packet Inspection, rather than traditional methods of monitoring torrent swarms.