O. O. Vlasov
The Russian Federal Centre of Forensic Science of the Ministry of Justice of the Russian Federation
Russian Federation

Vlasov Oleg Olegovich — Head of the Laboratory of Forensic Expertise of Video and Audio Recordings 

Moscow 109028

V. O. Kuznetshov
The Russian Federal Centre of Forensic Science of the Ministry of Justice of the Russian Federation
Russian Federation

Kuznetsov Vitaly Olegovich — Candidate of Philology, Candidate of Law, Head of the Laboratory of Forensics Linguistics 

Moscow 109028

T. N. Svirava
The North-Western Regional Centre of Forensic Science of the Ministry of Justice of the Russian Federation
Russian Federation

Svirava Timur Nugzarovich — Head of the Department of Studies in Extremist Matters, Video and Audio Recordings

St. Petersburg 191014

S. B. Shavykina
The Russian Federal Centre of Forensic Science of the Ministry of Justice of the Russian Federation
Russian Federation

Shavykina Svetlana Borisovna — Chief State Forensic Expert of the Laboratory of Forensic Expertise of Video and Audio Recordings

Moscow 109028