On 15 March 2022, Katsiaryna was detained in the entrance hall of her building and placed in a pre-trial detention center.
In June 2022, Katsiaryna was found guilty in a criminal case opened under the article "Organisation and preparation of actions grossly violating public order, or active participation in them" for taking part in the post-election protests held in Minsk in 2020, and sentenced to restricted freedom without referral to an open-type correctional facility. She was released in the courtroom after the verdict was announced.
