Mr Temerko says he believes the motivation of the assault on Yukos was President Vladimir Putin's desire to silence...
A court in London has ruled that the former Yukos vice-president and a close friend of Khodorkovsky Aleksander Temerko cannot be extradited to Russia.
Russian prosecutors had accused Temerko of defrauding a state oil company.
But the British judge concluded that Russian authorities wanted to punish him for his political opinions.
Mr Temerko will now be allowed to stay in Britain, pending a possible appeal by the Russian authorities.
Mr Temerko became vice-president of Yukos in 2003, after the arrest of Mr Khodorkovsky, who is now serving a prison sentence in Siberia.
Mr Temerko says he believes the motivation of the assault on Yukos was President Vladimir Putin's desire to silence those who challenged him politically.