Radical Fundamentalist are Free to make rally but Labor unions aren't under Islamic regime in Iran !

While radical fundamentalists are making rally without getting permission from ministry of interior , the labor union are not allowed to make rally on May day International labor day and are being arrested and detained.
On Wednesday fundamentalist Islamic forces made a pro Hijab rally in Tehran without even applying for permission from ministry of interior. It is illegal to make rally without getting permission , but it seems not for these group of people. Who are behind them which makes them special ? These forces are the darlings of the Islamic regime , the backbones of the Islamic regime , ready for any kinds of violence against Iranian people. We have seen these forces in green movement ( 2009 presidential coup acting violently against peaceful Iranian protesters). These forces are consists of Radical fundamentalist Basiji militias or Members of Sepah ( Revolutionary Guards), agents of Ministry of Information and  fundamentalists clergies .....Some members of Parliament who are pro" Jebhe Paydari" and followers of Ayatollah Mohammad Taghi Mesbah Yazdi.
This picture shows Kochakzadeh an MP on a motorcycle leading the pro Hijab rally.

Link:
http://www.isna.ir/fa/news/93021812276/