When school teachers went on strike just over six months after Sankara came to power, nearly 1,500 of them were dismissed and didn't return to their jobs until after his death. A union front was set up in January 1985 against the decline in democratic and trade union freedoms.
This was to stay active throughout the "revolutionary" Sankara period even though the trade unions and independent organizations were considerably weakened as a result of repression (including dismissal of civil servants, arrests and torture). The actions of the unions were considered subversive and could be punished with "military sanctions."
The Sankara government banned trade unions and a free press because it saw them as getting in the way of its reforms. Corrupt officials, counter-revolutionaries and "lazy workers" were tried in peoples' revolutionary tribunals. The public trials of former senior government officials were a positive development, but these trails were also used against genuine critics of the regime.
In the name of wanting to make a revolution for the mass of the poor people, Sankara did it without them or even against them.