NHK Party leader Takashi Tachibana was arrested on November 9, 2025, over a defamation charge. Hyōgo Prefectural Police accused him of making false statements about a late assembly member.
Police allege Tachibana claimed during the December 2024 gubernatorial campaign that former assemblyman Hideaki Takeuchi was “probably being questioned by the police.” Takeuchi died shortly afterward, prompting his wife to file a complaint in June 2025. Authorities said the statements were unsubstantiated and harmful, leading to Tachibana’s arrest.
Tachibana leads the NHK Party, which actively challenges Japan’s public broadcaster. His confrontational political style now faces serious scrutiny because of this defamation charge. Legal experts note Japan allows criminal prosecution for defamatory statements, even in political contexts.
Investigators said they arrested Tachibana because they feared he might flee or destroy evidence. Analysts describe the case as unusual given his prominence and the link to campaign activities. If prosecutors indict, the trial could overlap with upcoming elections.
The defamation charge creates political pressure for Tachibana and his party. Analysts suggest the case may damage the NHK Party’s credibility and reduce voter support. Observers also call for clearer rules on campaign speech and social media use to protect candidates and public figures.
Authorities have not disclosed whether Tachibana will contest the allegations in court. The Hyōgo Prefectural Prosecutor’s Office is reviewing the case, with an indictment possible by year-end.
This defamation charge highlights broader issues of political accountability in Japan. The outcome may influence how politicians speak publicly, manage reputations, and handle legal risks in future campaigns.

