China's top graft-buster Wang Qishan has stressed that discipline inspection agencies should have their power to supervise and exercise discipline restricted through regulations.

Wang, secretary of the Communist Party of China (CPC) Central Commission for Discipline Inspection (CCDI), made the remarks while visiting Zhenjiang City in eastern Jiangsu Province on Monday and Tuesday.

During the tour, Wang chaired a symposium attended by senior disciplinary inspectors from provincial regions and solicited opinions on drafting a regulation on the work of CPC discipline inspection agencies.

"Trust cannot take the place of supervision. Discipline inspection agencies should be supervised primarily by Party committees at various levels," Wang said.

He urged discipline inspection agencies to integrate self-discipline with other forms of supervision, including supervision within the Party and by the people, and enforce regulations in a strict manner.

"Unrestricted power is dangerous. Regulations should serve as a check and balance on power," Wang said.