Many fallen officials had occupied high-level posts, report Tang Yue, Zhang Yuchen and Wu Wencong.

When the trial of Bo Xilai begins on Thursday, the event will be China's highest-profile court case for years.

Bo, the former Party chief of Chongqing and a former member of the Political Bureau of the CPC Central Committee, will appear at Jinan Intermediate People's Court to face charges of accepting bribes, graft and abuse of power.