Some of the courses of action of the Leningrad People’s Oversight Committee, which became the successor of the City Committee for Party and State Control in the mid-1960s, are described in the paper on the basis of archive sources and periodicals. The most effective approaches, forms and methods of fieldwork of both the Committee itself and individual authorities on the implementation of oversight functions, primarily in industrial production, are described in this paper. Attention is devoted to the analysis of the reasons for some blunders and omissions in organization and conduct of verification and oversight actions of Leningrad People’s Oversight Committee’s authorities in the second half of 1960s.