“We are going to the interrogation on Friday. We are going to demand a return [of the money] because we consider its confiscation to be absolutely illegal,” said lawyer Genri Reznik.

“I am a rational person and I make a good living. I don’t have stock in Gazprom; I earn money through hard work. And where I keep this money – in envelopes, in a box, in jars – that’s my personal business,” Sobchak told journalists.

According to Ekho Moskvy radio, the activist also said that she preferred to keep her money on hand because she doesn’t trust the Russian banking system. “What’s criminal about me keeping my savings in envelopes? Where else should they be, in toilet paper or in magazines?” she asked.

The cash was confiscated on June 11 as part of a ten-apartment raid by Russia’s Investigative Committee. At the time, officials said the money was taken because “the source that the funds were acquired from has not been established.” Investigators now say that they are looking into whether or not Sobchak has paid due taxes on the money, and also checking if it is counterfeit.

The raids, which were mostly on apartments belonging to organizers of a tumultuous May 6 protest, came a day before the largest anti-government protest that Russia has seen in years, with estimates ranging between 50 and 200 thousand participants, 650 arrests, and 47 injured protesters.

According to Solidarity member Sergei Davidis, the organizational committee of the March of Millions concluded that the march would go on as planned, regardless of the actions of security officials.

Since Ilya Yashin was scheduled to be one of leaders of the march but may now be unable to attend because of a subpoena, the committee named State Duma Deputy Dmitri Gudkov from A Just Russia as his replacement.

According to Interfax, Russia’s Investigative Committee issued subpoenas to march organizers Aleksei Navalny, Sergei Udaltsov, and Ksenia Sobchak in addition to Yashin, ordering them to appear on at 11 am on Tuesday to “undergo investigation” in regards to riots in Moscow during an mass opposition protest on May 6 that ended with about 650 arrests and 47 injured activists.

The subpoenas were issued after investigative units raided (or attempted to raid, as some residents weren’t home) 10 Moscow apartments, purportedly in connection with the riots. In addition to the aforementioned activists, the apartment of Voina art activist Pyotr Verzilov was also raided. A number of computers, iPads, cellphones, and other materials were confiscated from Navalny and Udaltsov, as was Navalny’s t-shirt that read “United Russia is the Party of Swindlers and Thieves” and an item from Udaltsov with the Left Front logo on it.

Police also took 1.5 million euros from Sobchak’s apartment, on the vague basis that “the source that the funds were acquired from has not been established.” Sobchak was not one of the organizers of the May 6 protests.

The office of the Foundation for the Fight Against Corruption, created by Navalny, was also raided, as was the apartment of the parents of his fiancé.

A trio of Duma deputies from A Just Russia compared the raids to Soviet tactics of repression. “We feel that this might provoke an irreversible rise in tension in society and close the path to the constructive evolution of the political system in Russia,” said the statement released by Gennady Gudkov, Dmitri Gudkov and Ilya Ponomarev.