On February 14, 2024, the Investigative Committee opened a criminal case against representatives and participants of the "Personnel Reserve for a New Belarus" initiative, created by the United Transitional Cabinet. Later, the ONT television channel aired 14 arrests in connection with this case, and propagandist Igor Tur stated that he had been attending lectures on the program alongside security officials for a year.
Pro-government channels also published a video featuring Alexander, in which he confirmed his participation in the initiative.
In December 2024, he was convicted under the articles "organizing and preparing actions that grossly violate public order, or active participation in them" and "assisting extremist activity" and sentenced to imprisonment in a penal colony.
The "Personnel Reserve for a New Belarus" program, launched in November 2022, was aimed at training specialists to work in government agencies and implement reforms.
He was released on March 20, 2026, as part of a pardon following another visit to Minsk by US President Donald Trump's special representative, John Cole.


