It has been found that during his tenure as one of the leading cadres of Hebei Province, Cheng Weigao interfered in administrative affairs to seek profits for other people and his son Cheng Muyang, causing huge economic losses to the state; he let his spouse and children take advantage of his post influence to engage in illegal or even criminal activities; he used his power to retaliate against comrade Guo Guangyun who had honestly reported his problems; he and his spouse accepted a batch of valuable items such as a jade article for display. His two secretaries Wu Qingwu and Li Zhen were respectively sentenced to death with a two-year reprieve and sentenced to death at the first instance for their own criminal offenses. Cheng Weigao is responsible for their crimes committed by taking advantage of his post influence.