On August 30, 2020, Siarhei was detained during a post-election protest in Minsk.
On December 9, 2021, he was detained again, this time in a criminal case.
In March 2022, Siarhei was found guilty in a criminal case initiated under the article "Organisation and preparation of actions that grossly violate public order, or active participation in them" for taking part in the post-election protests held in Minsk in 2020.
Siarhei later left Belarus.
In December 2024, court hearings on toughening his punishment were held in absentia as part of special proceedings.
