MOSCOW, September 7 - RAPSI. The Basmanny District Court has sanctioned Leonid Kovyazin's custody; he is accused of taking part in the mass riots that swept central Moscow on May 6 until November 5, the court told the Russian Legal Information Agency (RAPSI/ Friday.

According to investigators, Kovyazin overturned portable toilets to build barricades against the police.

Clashes with the police flared up during the officially sanctioned opposition march across Moscow. Dozens of protesters and police officers were injured. The police detained over 400 rally participants.

After May 6, the opposition continued its protests in the form of "people's promenades," in which crowds of opposition activists strolled peacefully through the city in a show of opposition.

In June, investigators searched the homes of the rally organizers and participants.

During the hearing, the investigators claimed that if not detained, Kovyazin could hide, hinder the investigation, or destroy evidence in the case. Kovyazin has claimed his innocence in the case. "I am not going to hide or hinder the investigation of the case," he said.