Police stand outside what is believed to be the home of former Russian spy Sergei Skripal in Salisbury. Photo: EPA

Britain claims Russia spied on Skripals before poisoning with nerve agent as Moscow challenges watchdog findings

National Security Adviser Mark Sedwill said Russia has tested means of delivering chemical agents by application to door handles

Topic |   Britain

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Police stand outside what is believed to be the home of former Russian spy Sergei Skripal in Salisbury. Photo: EPA
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