The main task of the Fifth Branch of Chongqing Municipal People's Procuratorate is to perform legal supervision functions in accordance with the law within the administrative areas of Yuzhong District, Nan 'an District, Jiulongpo District, dadukou district, Banan District, Wansheng District, jiangjin district, Yongchuan District, Qijiang County and Rongchang County. Its main responsibilities are: to file a case to investigate major duty crime cases such as corruption, bribery, dereliction of duty and infringement, and to carry out duty crime prevention; Examining and approving arrests, deciding on arrests and initiating public prosecutions in major criminal cases according to law; To exercise legal supervision over criminal proceedings, civil trials and administrative proceedings according to law; To lodge a protest in accordance with the law against the legally effective judgments and rulings of the grassroots people's courts in this area; To supervise the legality of the activities of the penalty execution organ in executing the penalty according to law; Accepting reports, complaints, appeals and reports from units and citizens, and legal supervision of criminal suspects' surrender.