 Early one Sunday last summer, Helen Young was woken by the phone ringing. Helen, who is an accountant in London, thought it was her mother in China, but it wasn't. Mrs Young, are you Mrs Young? I said, yes, what can I do for you? The voice on the line told Helen that he was a customs officer in China. An illegal parcel had been sent in Helen's name, he said, but Helen hadn't sent anything. And when she was told the call was being transferred to the police, she was sceptical.