Found guilty of espionage in favor of Russia and sentenced to seven years in prison, as well as two years of administrative supervision.
According to the investigation materials, Sidorov was associated with the Antifascists of the Baltics telegram channel, which allegedly assisted Russian intelligence services in actions that threatened Latvia's security. The court found that channels like this one called for the collection of data on defense systems, international agreements, NATO plans and aid to Ukraine, which Sidorov also supported by participating in the collection of information. In addition, he was found guilty of inciting national hatred for his publications on the Internet.