A policeman detains an activist of Ukrainian group Femen at a polling station in Moscow, March 4, 2012, where Russian Prime Minister Vladimir Putin has voted. Putin sought a convincing victory in Russia’s presidential election on Sunday to strengthen his hand in dealing with the biggest opposition protests since he rose to power 12 years ago. Critics question the legitimacy of a vote they say is skewed to help the former KGB spy return to the Kremlin after four years as prime minister, and are threatening to step up protests that began after a disputed parliamentary poll in December. The text reads: ‘I steal for Putin.’ Reuters/Denis Sinyakov (RUSSIA – Tags: POLITICS ELECTIONS) TEMPLATE OUT.