On October 3, Polina Kostyleva, the coordinator of Navalny's campaign headquarters in St. Petersburg, was charged with violating the procedure for holding the event (Part 1 of Article 20.2 of the Code of Administrative Offenses). She was released from Police Station No. 2 only at 23.15. This is reported on the policy's team page.
The coordinator Polina Kostyleva was detained on September 3 in the office of the headquarters. The police took her to Police Station No. 2 and drew up a protocol. The trial is set for October 5th.
Police officers arrived at Navalny's headquarters on the evening of 3 October. They stated that they had received information that leaflets with a call to participate in the action on October 7 had been pasted inside the office. The police demanded to see these leaflets, but the headquarters staff could not find them. According to the activists, everyone in the building was demanded to leave, while Polina Kostyleva was kept inside for some time.