Russia's new prosecutor general says he is sending a team of specialists to Britain to deal with cases in which British courts have refused Russian extradition requests.
Yuri Chaika told Russian television that the team will examine the extradition cases to see what procedures need to be taken to make them successful.
Russia has been trying to extradite business tycoon Boris Berezovsky and Chechen envoy Akhmed Zakayev for years but authorities have granted both men political asylum in Britain.
Berezovsky was a former ally of Russian President Vladimir Putin but later became a harsh critic of the president. A British court earlier this month rejected a Russian request to extradite him on charges of plotting a coup.
Zakayev was the representative in the west of Chechen separatist leader Aslan Maskhadov, who was killed in 2005. Russia has accused Zakayev of terrorism.
Some information for this report was provided by AP and Reuters.