Khalil Karimi, one of the board members of the Free Union of Iranian Workers was interrogated by the security agents on April 28. They accused him of coordinating activities to hold may day celebration in the city of Sanandaj. They declared the union as illegal and forced him to resign. But Khalili emphasized on the right of workers to hold may day celebration, legality of this Union and his membership. Few hours later he was transferred to the branch four of the Revolutionary Court in the city of Sanandaj and his file was opened. Today, he has to appear for the trial before the court.