Siarhei and Yury Selvich met in 2020 during the post-election protests. According to the investigation, at that time they went out onto the roadway with a white-red-white flag and blocked traffic on the central streets of Minsk.
On February 28, 2022, Siarhei was detained in a case on preparing an act of terrorism. For almost a month he was held in a temporary detention facility and then transferred to a pre-trial detention center. The prosecution claimed that the two men intended to destroy Russian military equipment being moved through the Mazyr district and had been stockpiling components for Molotov cocktails since August 2020, and that Siarhei had allegedly made them himself. State television showed hidden-camera footage from a garage in which they allegedly discussed damaging railway tracks.
Siarhei was also charged with posting a video with the date and time of Russian military movements to a Telegram channel designated an "extremist formation", and with drawings and inscriptions on a fence and a road sign that the investigators regarded as inciting hostility towards the residents of another state.
In February 2023, after a closed trial, Siarhei was found guilty in a criminal case initiated under several articles, including preparation of an act of terrorism and "Facilitation of extremist activity", and was sentenced to a long prison term.
His symbolic godmother is Jana Simanovska, a member of the Latvian Saeima.
