The Guideline was drafted in the framework of the project “Law Enforcement Training in the area of Undercover Online Operations in Combating Cybercrime (CY-OPS) “. It gathers contributions from a series of trainings and round tables that brought together law enforcement and members of the judiciary from over 15 EU Member States.

The concept of the Guideline evolved from the need of combined trainings for police officers and prosecutors, integrating three concepts: Technical, Operational and Legal. It is intended to be a useful tool for LEA and prosecutors in the EU that are confrunted with cybercrimes in identifying the ways in which crimes are committed, identifying the perpetrators, creating a strategy of infiltration, gathering evidence and prosecution in a way which is fully compliant with the legal constraints and with human rights.

Given the sensitivity of the content, the guideline is restricted to Law Enforcement and Judicial use only.

Period of implementation

February 2017 – July 2018


Project CY-OPS has received funding from DG Migration and Home Affairs – European Commission (INTERNAL SECURITY FUND POLICE 2014-2020).


The project was led by the Prosecutor’s Office attached to the High Court of Cassation and Justice in Romania, in partnership with CJS, the National Institute of Justice in Bulgaria and with the support of NCA – National Cybercrime Unit (UK) and Bitdefender.