It later emerged that the assassin had gained access to the university campus using a press card issued by the newspaper Partcham-e Islam (The Flag of Islam). With the allegation that the assassin Fakhr Araϊ was a member of the communist Tudeh party , this group was banned with immediate effect, newspapers related to the party were closed and other political opposition members were arrested. On the day of the attack, the Tudeh party had held a large demonstration at Taqi Erani's tomb and had already started campaigning for the upcoming parliamentary elections in the summer of 1949. The ban prevented the party from officially taking part in the election.
