罪群 meaning in Chinese

cultural community

The paper does a systematic and professional research on the group of crimes concerning financial bills which is made up of the crime of forging or altering financial bills , the crime of illegal issuing financial bills , the crime of accepting , paying or guaranteeing illegal financial bills and the crime of fraud by financial bills
本文将与票据有关的四个个罪：伪造、变造金融票证罪，非法出具金融票证罪，对违法票据承兑、付款、保证罪和票据诈骗罪作为一个罪群进行系统性和专业性研究。