Professor Richard McLaren leaves after speaking at a press conference following the publication of his report on drug use in Russian sport, in central London on December 9, 2016. More than 1,000 Russian athletes in about 30 sports took part in an "institutional conspiracy" to use banned drugs at the Sochi and London Olympics and other global events, doping investigator Richard Mclaren said Friday. He said in his new report for the World Anti-Doping Agency (WADA) that he had confirmed the switching of samples at the Sochi Winter Olympics in 2014 and that salt and coffee was used to manipulate samples when checked by international experts. / AFP PHOTO / Adrian DENNIS