[citation needed] According to the Beijing Youth Daily,[3] during Yang's term in Suzhou, he reportedly maintained close relations with the family of Zhou Yongkang, a former member of the powerful Politburo Standing Committee of the Chinese Communist Party, who was a native of the region.

[3] Yang also served as the president of the organizing committee of the 2014 Summer Youth Olympics, spearheading a strategy of using temporary venues for competition and spending frugally.

In addition, in preparation for the 2014 Summer Youth Olympics in Nanjing, Yang called upon the city to embrace the slogan, "work hard for one hundred days, clean up the environment.

In July 2014, state media announced the investigation into China's former security chief and Wuxi-area native Zhou Yongkang.

[7] On December 13, the "National Commemoration Ceremony" for the Nanking Massacre took place in the city, attended by CCP general secretary Xi Jinping.

[7] After the Commemoration Ceremony, Yang maintained an extremely low-profile, showing reluctance even when signing routine documents and pushing most work onto Mayor Miao Ruilin.

[7] On January 4, 2015, Yang was detained by officials from the Central Commission for Discipline Inspection, the Party's internal anti-graft agency, on "suspected serious violations of displinary and law".

[10] Yang was chairing a "democratic life meeting" when he was informed by an assistant that his presence was immediately required at the provincial party headquarters.

In an official statement, the CCDI accused Yang of "gravely violating organizational discipline, hiding personal information [from the authorities], accepting cash gifts, seeking gain for others using the convenience of his office [...] violating the Eight-point Regulation, frequenting high-end hotels and private clubs, accepting banquet invitations from others; using the convenience of his office to seek promotion or further business interests of others, and taking huge bribes."

[12] On December 14, 2016, Yang Weize was sentenced for 12 years and 6 months in prison, having been convicted on charges of bribery by the Ningbo People's Intermediate Court.