Venezuela's Henrique Capriles to challenge vote in court 26 April 2013 Last updated at 10:44 Venezuelan opposition candidate Henrique Capriles has vowed to challenge President Nicolas Maduro's narrow victory in the 14 April presidential poll in the Supreme Court. Mr Capriles announced on Thursday his movement would pull out of an audit of the vote, which he agreed on last week. He said the proposed conditions for the audit were unfair, calling the process a "joke." The opposition leader claims votes were "stolen" by Mr Maduro's government. Mr Capriles said his movement would boycott the audit because the electoral authorities had not accepted his demand for voter signatures and fingerprints to be examined. The electoral council failed to meet his "deadline" of 25 April to issue details of the audit. "If we don't have access to those notebooks, we're not going to take part in an audit that would be a joke on Venezuelans and a joke on the world," Mr Capriles told pro-opposition TV channel Globovision. Mr Capriles says he will ask the Supreme Court to annul the election and allow Venezuelans to go back to the polls. We will not accept a joke audit... It's time to get serious," Mr Capriles said at a news conference. He repeated his accusations that Mr Maduro had manipulated poll results: "The truth - and it is as big as our country is wide - is that you stole the election.