Sharing offices and staff with disciplinary inspectors of the CPC, these supervisory com-missions incorporate existing supervisory, corruption prevention and control agencies within governments and procuratorates to target graft more efficiently and effectively, he said.

Ding Zhaomin, an NPC deputy from Jilin province, said he believes the reform will better supervise those exercising public power and ensure the healthy development of Chinese society.

Chief Justice Zhou Qiang also said on Friday that courts have strengthened efforts against wrongful convictions in the past five years, with the aim of better protecting human rights and upholding justice.

Courts around the country overturned 6,747 criminal cases between 2013 and 2017, and pronounced 4,874 defendants "not guilty" over the period, he said.

Tan Yingzi contributed to this story.