moiety actglossary / MOIETY ACT moiety act. Criminal law. A law providing that a portion (such as half) of an imposed fine will inure to the benefit of the informant. [Cases: Fines 21.] 词条贡献者 资深译员徐玲,知名法学院法律翻译专业,擅长翻译各类与财务重组相关的法律文件。