international broadcasting worldwide from our studio here in moscow nicky aaron brown top story this hour the russian doping saugor is once again making headlines new evidence has emerged questioning the authenticity of 3 key whistle blowers affidavits originally submitted with the intent of showing which russian athletes allegedly cheated or for more on that some crossing live to south korea taylor now 38 good to see you what is this new evidence emerged from and does it actually change anything. well it really potentially significant development in the scandal that has gripped the sporting world for several years now at the moment proceedings at the court of arbitration for sport in switzerland are under way and evidence relating to the a legit russian government sanctioned doping scheme is being reassessed but independent expertise from a german newspaper say that in fact the signature overtake he witness on a key piece of testimony is not actually an original but a low quality fake one digital forensic report concluded that the same photo fire liberal change of signature was inse