Alexander was first arrested in March 2021 and convicted of "participating in group actions that grossly violate public order" in a criminal case opened after a protest on September 13, 2020, in Brest. At that time, the participants were singing and dancing in a circle, and a water cannon was used against them. He served his full sentence and was released in July 2022.
However, in December 2023, it became known about his new arrest in connection with a criminal case opened after spontaneous protests that took place on August 10, 2020 in Brest against falsifications in the presidential elections. In April 2024, he was sentenced to imprisonment for participating in the protest.
He was released in September 2024 as part of a pardon.









