Budgett said a "huge security presence" involving national guard and private security officers is in place, along with an "extensive network" of surveillance cameras. A "large number" of international experts, including four doping lab directors and WADA observers, are on site, "sometimes staying all night," Budgett said. The IOC instead allowed international federations determine which individual Russian athletes met the criteria to compete. "Of course, we look at ourselves and wonder how we could have done better in Sochi," Budgett said. As with other games, the IOC will store Rio doping samples for 10 years so they can be retested when improved techniques become available.

Source: New Zealand Herald August 15, 2016 21:11 UTC