Denis was arrested on August 5, 2021, in connection with a criminal case opened under the article "organizing and preparing actions that grossly violate public order, or active participation in them," and was placed in a temporary detention facility for three days. He was subsequently released on personal recognizance.
In October 2021, Denis was convicted of posting the following message in the "Minsk 97%" Telegram chat on September 8, 2020: "Urgent, drivers on Masherov Street! Block traffic, prevent security forces from gathering, help the protesters!"
