Baojia system is a grass-roots administrative organization system below the county level during the period of Nanjing National Government. It was the old feudal system after the Song Dynasty. 1In August, 932, Chiang Kai-shek promulgated the Regulations on Compiling and Checking Jiabao Household Registration in Districts and Counties, which was officially implemented in the surrounding areas of the Red Army Revolutionary Base in Hubei, Henan and Anhui. Later, it was extended to Shaanxi, Jiangsu, Gansu, Ningxia, Hunan, Suiyuan, Fujian, Zhejiang, Shandong, Jiangxi, Sichuan and other provinces, as well as Peiping (now Beijing) and Nanjing. 1937 In February, the Executive Yuan promulgated and amended the Garbo Regulations, which were implemented nationwide. Jiabao is family-based and has a head of household; Ten households are one, with a length; Ten armor is insurance, and the length of insurance is set. Each insurance company shall compile the boundary address of the original towns and villages within its jurisdiction, or merge several towns and villages into one insurance company, but it shall not divide a part of a town into other towns and villages. Larger towns can be grouped into several insurance companies, which are jointly operated by insurance companies, and each insurance company elects a director. The head of household is basically the parents, and the head of Jiabao is nominally elected by the head of household and the head of Jiabao. However, if the county magistrate finds that he is not "competent" or thinks it necessary to replace him, he can order the original referee to replace him. All householders should sign to join the Garbo Statute, and householders with parallel contracts should join the common oath, stating that all households should join the oath in case of "collusion with bandits". Sheriff Garbo is responsible for maintaining peace and order in Garbo under the command and supervision of the district chief. Under the command and supervision of the district chief, the director of the United insurance company is responsible for maintaining the security order of the security guards, but the affairs that should be handled by the insurance companies are still the responsibility of the responsible persons of the insurance companies. The basic work of Garbo organization is to implement "management, education, maintenance and health". "Management" includes auditing accounts, checking guns, practicing sitting together and cutting knots; "Teaching" includes keeping schools and training sound men. "Raising" includes establishing so-called cooperatives and surveying land. "Wei" includes the establishment of local groups and the implementation of patrol alert. 1939, 19 In September, the National Government promulgated the Outline of Organizations at All Levels in Counties, and added deputy inspectors, stipulating that the inspectors also served as principals of Bao National School and captains of able-bodied men's teams, further strengthening the Bao Jia system. 1949 was abolished with the end of Nanjing National Government's rule in Chinese mainland.

Even if one person commits a crime, many people will be punished. Its one-to-many mode is different from today's one-to-one mode. For example, if one person in Village A breaks the law, everyone in Village A will be punished. The system of connecting seats originated from Shang Yang Reform in Qin Dynasty. It is another tool to consolidate feudal rule.