MOSCOW, March 12 - RAPSI. Ex-security service officer Andrei Lugovoy, who is now a State Duma lawmaker, will not take part in the UK-based inquest into Alexander Litvinenko’s mysterious death.

“I am quitting the the coroner's inquest, I will not participate in it any longer,” Lugovoy has told a press conference held in Moscow on Tuesday, adding that he made the decision after the Foreign Office insisted on some of the case records to be classified.

Litvinenko, a former KGB agent, fled to the UK in 2000. He died in 2006 shortly after meeting with Lugovoy in London's Millennium Hotel. It was announced soon afterwards that Litvinenko was poisoned with polonium-210 which was found in his body.

UK officials claimed that they had sufficient evidence to charge Lugovoy with murdering the former intelligence officer.

The Russian lawmaker claimed the charges against him were politically motivated. He has passed a lie detector test administered in Moscow by British experts. No evidence of his guilt was found.

At the press conference in Moscow Lugovoy said that he could not receive justice in Britain. “I understood that British authorities will not let me prove my innocence," he said, adding that the trial will be a farce.

“Litvinenko was an agent with the British intelligence services and was paid for his work,” Lugovoy said. “He was also a double agent and helped Spain to deal with criminal bosses of Russian origin. He also did commercial spying for various firms. Such activity could have earned him a host of enemies.”