Some 100 people thronged into the tomb of Baqer Khan in the Constitution Park to remember the 100th anniversary of constitution in Iran on the evening of Friday (5 August, 2005).
After hours of debate, police allowed them to attend in a controlled and simple ceremony. When one of the political activists, Abbas Lesani, wanted to give a speech, police disrupted the affair and arrested some of the participants. It is said that two political activists, Abbas Lesani and Abdol Aziz Azimi gadimi Ardabili were taken away.
Meanwhile, an official ceremony to honor the constitution was held elsewhere in Tabriz. Unlike to that ceremony, participants of this one who were mostly governmental people such as former culture minister Ataollah Mohajerani and interior minister's political deputy Morteza Mobaleq, were entertained very well!

Source:http://www.azadtribun.com/x31.htm