Yukos Oil’s Mikhail Khodorkovsky, once Russia’s wealthiest man, is serving an eight-year prison sentence for fraud and tax evasion. Kremlin critics say the charges stemmed from the former oligarch’s opposition to then-president Vladimir Putin. Since March, Khodorkovsky has been on trial again, this time for alleged theft, and the court has refused to allow him to address the allegations against him. In written responses to questions submitted to his lawyers by NEWSWEEK’s Russian-language partner, Russky NEWSWEEK, Khodorkovsky talked about Putin, the charges against him, and the Russian justice system. Excerpts: