Anti-Boryokudan Law Era

Japan’s Anti-Boryokudan Act created a formal designation system and specific powers against coercive behavior by members of designated gangs. Later amendments strengthened controls, especially during violent gang conflicts. The law did not simply outlaw membership; it progressively restricted the ways designated groups could operate, while exclusion campaigns and private-sector rules increased pressure beyond criminal prosecutions.

Why this profile matters

This profile expands an existing canonical the archive node rather than creating a duplicate. Its main purpose is to make the Japan knowledge graph denser by connecting regional groups, people, conflicts and legal changes.

the archive connections

Boryokudan Explained, How Japan Designates Yakuza Groups, Boryokudan Exclusion Ordinances, Yakuza Membership Decline, Dojin Kai Kyushu Seido Kai Conflict.

Sources

– [Japan National Police Agency — Anti-Boryokudan Act amendments](https://www.npa.go.jp/hakusyo/h24/honbun/html/o3130000.html) — Official background on the Anti-Boryokudan Act, amendments and stronger conflict controls. – [Japan National Police Agency — Boryokudan Countermeasures 2014/2015](https://www.npa.go.jp/hakusyo/h27/honbun/html/rf121000.html) — Official account of special conflict designations and later suppression of the Dojin-kai conflict. – [Japan National Police Agency — White Paper 2017](https://www.npa.go.jp/hakusyo/h29/english/full_text_WHITE_PAPER_2017_E.pdf) — Official background on modern anti-boryokudan enforcement and major syndicate conflicts.

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