some inside the Kremlin have questioned whether Putin's policy of entrusting power to Chechens - known as "Chechenisation" - has gone too far. Kadyrov has been repeatedly accused of murdering his enemies, including the Russian journalist Anna Politkovskaya, a critic who described him as a "coward armed to the teeth". He denies involvement in her death.In January, a Chechen exile, Umar Israilov, who had accused Kadryov of torturing him was shot dead in a street in Vienna. And last month, Sulim Yamadayev, a former Chechen rebel commander who fell out with Kadyrov, was shot dead in Dubai. Police in the United Arab Emirates accused Kadyrov's cousin and heir apparent, Adam Delimkhanov, of ordering the assassination.