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Ting,世界知名语言学院法律英语专业,专注翻译各种与专业责任纠纷有关的法律文件。