Local officials were incensed by the public discussion of their corruption and incompetence as well as his criticism of pro-Kremlin separatists in eastern Ukraine. Rather than refute the claims, they arrested him. The simply said that his call for people to attend a protest against the hike in local bus fares constitutes a call to overthrow the government.
It is a familiar approach in Russia from the Stalinist era. Of course, we must now just call it the Putinist era.
