by Berlinger , a Swiss company , were designed so that they could not be opened without breaking the cap once the bottle had been sealed . When it is time to test the urine sample , the cap is removed by breaking it into two parts with tools or machines sold by Berlinger . Unique 7-digit code Security cap locks by pushing down while screwing it on .
Traces of polonium 210 were later found in many of the places the alleged killers had visited : the bar ’s bathroom , their hotel rooms , a boardroom where they conducted an earlier meeting , a soccer stadium where they watched a game and the plane that ferried them back to Russia . But the highest concentrations were discovered at the table where the three men were sitting , and in and around the teapot . The polonium , the inquiry finds , was manufacturedmanufacture.artifact.nain a nuclear reactor , suggesting the role of a government rather than criminal networks . The report conclusively rules out suggestions that Litvinenko poisoned himself , or that he was poisoned by others , as Russian officials have suggested . “ The scientific evidence , ” Owen , the judge , said at a Thursday new conference , “ demonstrates conclusively that Alexander Litvinenko was poisoned by Andrei Lugovoi and Dimitry Kovtun . ”