Donatas Mazeika joined National Criminal police of Lithuania 1997. Since 2004, he was involved in Cybercrime investigations as an investigator, digital forensic examiner (MSc in Digital Forensics) and Head of Cybercrime investigations at National Criminal Police of Lithuania as of early 2013. In January 2019, he joined Europol’s Cybercrime Centre as Team Leader of Forensics, where he was pushing the limits of Law Enforcement capabilities in accessing data, relevant for Cybercrime investigations.