The deputy secretary of the district party Committee took over the district head. When the district head is transferred to the district party secretary, the vacancy of the district head position is created by an official who is the deputy secretary of the district party Committee, and it is the highest vacancy in the sub-district. When the warden was transferred and appointed, the vacancy of the warden was also created by the deputy district party secretary. So the deputy secretary of the district party Committee took over the district chief. District heads are appointed or elected by the government or local administrative agencies, and their tasks mainly include managing and supervising public services, social affairs, infrastructure construction, administration and law enforcement in the region.