This article is devoted to the digital transformation of the Prosecutor's office of the Russian Federation, which is planned in three priority areas: high-tech surveillance, digital infrastructure, the environment of trust. Digital transformation of Prosecutor's offices will significantly affect the quality of law enforcement in criminal proceedings. The use of the achievements of technical progress, including the widespread use of digital technologies, significantly optimizes the criminal procedural activities of prosecutors, will ensure the formation of an environment of citizens' trust in the activities of law enforcement agencies. As part of the transition to hightech supervision of the Prosecutor, it is planned to create a single secure digital online platform for interaction between the Prosecutor's offices among themselves and with other state bodies and the population. Functional requirements for this platform are proposed, as well as technologies that can be applied during its development are analysed. In particular, two-factor authentication, machine learning (semantic neural networks, computer vision), data clustering, and blockchain technology.