Here is video of Yevgenia Chirikova’s kidnapping by police and OMON riot cops after a press conference today in Moscow.
A spokesman for the Moscow Region Directorate of Internal Affairs (i.e., the police for the region around Moscow, not the city itself) later claimed that Chirikova was detained because she had failed to respond to a summons in connection with the investigation of the attack (allegedly by anarchists and antifascists) on the Khimki administration building on July 28.
We do not have special information about Chirikova or the attack, although everything we do know suggests that a) it is highly unlikely she would fail to appear if she really had been summoned, b) it is even less likely she had anything to do with the attack on the administration building. What you see on the video is an oligarchical capitalist police state in action.
UPDATE: Chirikova has been released after being interrogated by the police for five hours.