Groups or individuals that pursue economic profit by unlawful means such as violence, force, or fraud — a legal/social term often used in contracts to exclude such parties (i.e., 'antisocial forces').
会社は契約書に反社会的勢力との関係を禁止する条項を入れている。
The company includes a clause in contracts banning relationships with antisocial forces.
警察は反社会的勢力の摘発を強化すると発表した。
The police announced they will strengthen crackdowns on antisocial forces.
金融機関は反社会的勢力と関係がないことを確認するためのチェックを行う。
Financial institutions perform checks to confirm there is no relationship with antisocial forces.